JP2003006270A - Cad system for prefabricated buildings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a CAD system for prefabricated buildings that can sufficiently respond to clients' requirements even in the basic-design stage at the visiting site. SOLUTION: The data concerning specifications except shapes, dimensions and prices of each part data contained in the part database of the drafting apparatus 2 are replaced with blank data. These simplified part data composes a simplified part database, which can be installed in a basic-design CAD apparatus 8. Therefore, the data of the all parts for prefabricated building are stored in the basic-design CAD apparatus 8. None of parts cannot be inputted into the portable basic-design CAD 8 and it can respond to the clients' requirements sufficiently in the basic design stage at the visiting site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system for drawing drawings of a prefabricated building for supporting the design work of the prefabricated building.

[0002]

BACKGROUND ART Conventionally, a prefabricated building is constructed by combining a plurality of box-shaped building units manufactured in a factory at a construction site or a plurality of floor panels and wall panels manufactured in a factory at a construction site. The type of building is known. According to such a prefabricated building, since the building unit is manufactured at the factory, the work at the construction site is reduced,
The advantage is that high quality buildings can be provided to customers in a significantly shorter period of time than conventional construction. In order to secure the advantages of this prefabricated building, it is necessary to standardize and standardize the unitized components manufactured in the factory, so as a product (prefabricated building) to provide to customers,
The color of the ready-made product was dark, but with this,
It is becoming difficult to meet the diverse needs of customers.
For this reason, even if the prefabricated buildings are designed one by one in accordance with the customer's requirements, as in the case of general custom-built buildings, the efficiency of the design can be sufficiently ensured, and the designed prefabricated buildings can be quickly constructed. Introduced a CAD system to support the design and cost estimation of prefabricated buildings,
As a result, it is possible to meet various requests from customers.

Here, also in a prefabricated building, a large number of different structures and dimensions are prepared for each part such as exterior, interior, fittings and equipment of the building, and parts of the same structure and dimensions are prepared. Also, if various variations having different finishes such as colors, patterns and designs are prepared, it becomes possible to meet the diverse requirements of customers even if the component parts are standardized and standardized. When a CAD system is used in performing design work, design work and integration work can be performed quickly even if the number of variations of parts is increased. Therefore, the applicant of the present application, as shown in FIG. 5, separately provides creation devices 51 and 52 for creating a drawing in each of the sales department and the manufacturing department.
A CAD system 50 has been proposed in which necessary functions are distributed to 51 and 52, and respective data can be exchanged with each other (Japanese Patent Laid-Open No. 2001-76018).

In such a CAD system 50, the design drawing preparation device 51 of the sales department prepares a detailed working design drawing to the extent that an estimate for a construction contract can be prepared, while the design drawing preparation device 52 of the manufacturing department. Then, the production drawings for actually producing the units that will be the respective parts of the building are created. In addition, the design drawing creation device 51 is provided with a storage medium such as a hard disk, and in this storage medium, an enormous amount of data relating to specifications and prices of parts constituting a building is stored in order to perform a working design. A large first component database is constructed by these data. Here, if the salesperson A of the sales department visits the customer B by bringing the portable personal computer 53 on which the CAD software is installed and having a meeting with the customer using the portable personal computer 53 described above. On the spot, the basic design of the building requested by the customer B can be performed, and an approximate estimate of the building can be performed. Within the budget of the customer B, the specifications of the building desired by the customer B can be quickly and accurately specified. You will be able to decide.

Since the capacity of the built-in hard disk of the portable personal computer 53 is limited, the portable personal computer 53 has a large first parts database stored in the design drawing creating device 51 of the CAD system 50. A small second parts database designed separately from the parts database of the design drawing creation device 51 cannot be stored. This second parts database is a simplification of the above-mentioned first database.
That is, in the second component database, regarding the data of the single component that is independently used in the data of the first component database, the data of the single component is stored as it is and is used in combination with each other. For group part data, the data of the standard group parts that belong to the standard group among the groups that combine these group parts is accumulated, and the data of these individual parts and the data other than the standard group parts are omitted. ing.

[0006]

In such a CAD system 50, there is no data in the second parts database for parts other than the standard group parts that belong to the standard group. There is a problem that it is not possible to input with the personal computer 53, and although the types of parts have been prepared to meet the customer's request, it is not possible to sufficiently meet the customer's request at the basic design stage at the visited site. is there. Further, for convenience of design work, a standard group part is selected instead of the part for which data does not exist in the second part database, and the part data is originally input by the design drawing creating device 51 later. Although it is possible to correct the part data of the part that should be, it is necessary to delete and re-enter the part data, which complicates the design work. There is a problem that it will be erroneous.

An object of the present invention is to provide a CAD system for a prefabricated building which can sufficiently meet the customer's request even at the stage of basic design at a visiting place.

[0008]

The present invention is a CAD device 8 for basic design that supports a basic design work for defining an overall outline of a prefabricated building, and an implementation for defining the contents of construction work based on the basic design. Detailed design C to support design work
A prefabricated building CAD system 1 including an AD device 2, wherein the working design CAD device 2 determines in detail each specification of each of a number of parts forming a prefabricated building and each part. Is provided with a parts database 14 in which a large number of data including part codes for executing the parts code are stored, and the basic design CAD device 8 includes each part included in the part database 14 of the working design CAD device 2. It is characterized by being provided with a simplified component database in which component data in which data regarding specifications other than shape, size and price is replaced with blank data is stored.

In the present invention as described above, the part data stored in the simplified part database is blank data except for the shape, size and price, so that the size of each part data is remarkably small and the prefabricated building is constructed. The size of the simplified parts database does not increase even if all the parts for use are stored, and the simplified parts database can be provided in easily portable hardware such as a portable personal computer. 8 can be portable. As a result, the simplified component database contains the component data of all the components, and there are no components that cannot be input by the portable CAD device 8 for basic design. It becomes possible to fully comply with. Here, since the blank data of the component data which has been set and input can be automatically detected by the CAD device 2 for detailed design, the blank data is automatically detected at the time of detailed design, and the necessary data is overwritten on the detected blank data. This eliminates the need for deleting and re-inputting the component data as described above, and prevents erroneous writing on the drawing due to forgetting the correction work.

In the CAD system 1 for prefabricated buildings as described above, the CAD device 2 for working design has a display means 2B for displaying a screen including figures and tables, and a prefabricated building for each stage of design work. When selecting and inputting the parts to be installed in the parts list, a parts table generation means for displaying a parts table showing the names and specifications of the selectable parts on the display means
When the parts table generating means 34 generates the parts table, it is preferable to provide mask means 35 for generating a mask that hides unnecessary parts of the specifications of each part at each stage of the design work.

In the design of a building, generally, as the design work progresses, the specifications of the building to be designed and the specifications of each part are clarified one after another. At each stage, only the operation of inputting the specification of the clarified parts will be performed, and the operation of inputting the specification that does not require input and the specification is unclear,
For the time being, useless operations such as temporary input operations and correction operations for correcting the temporarily input specifications are omitted, and the design work can be performed efficiently. Further, as described above, if the parts table generating means 34 and the masking means 35 are provided and the setting input of the parts is sequentially performed in accordance with each stage of the design work, the parts can be input in the initial stage of the design work. Since the selection range of is narrowed, it becomes easy to judge when selecting the specifications of parts, and even a salesperson who does not have sufficient specialized knowledge about construction can perform input work.

Further, in the CAD device 2 for detailed design,
From the parts that have been selected and input, parts that have different part codes according to the initial settings that are set at the start of design are detected, and the part codes included in the part data of the parts are detected.
It is desirable to provide a component code conversion means 36 for converting the component code according to the initial setting.

In designing a prefabricated building, data relating to the structure such as the number of floors of the building, the form of the entire building, and the ground bearing capacity of the site are first set (initial setting), and based on this initial setting data, the structural parts Since the specifications are determined, appearances such as designs are almost the same, but a plurality of types of parts having different specifications such as strength occur. For this reason, the selection range of parts becomes wide, making it difficult to judge when selecting the specifications of parts. Especially, when a sales person who does not have sufficient specialized knowledge about construction performs input work, the time required for input work This will increase the number of input errors and errors. Therefore, as described above, the component code converting means 36 for converting into the component code according to the initial setting is provided, and the parts having the same external appearance such as design but having different specifications such as strength are converted into the component code converting means. Automatically selects the specifications, the operator does not have to expand the selection range of the parts when inputting the settings of the parts, making it easier to judge when selecting the specifications of the parts. Even if a sales person who does not have sufficient specialized knowledge performs the input work, the input work can be performed in a short time and the input error does not increase.

Here, as the part code of each part, a part code including a conversion symbol to be converted into a different specification symbol according to the initial setting set at the time of design start is provided, and the part code converting means 36 sets the initial code. The CAD device 2 for working design has a conversion function of converting the conversion symbol into a specification symbol according to the setting, and a code adding function of adding a converted code to the converted specification symbol from the conversion symbol. Is a means for accumulating the total cost of the designed prefabricated building 22
And the part code of the part that causes the difference due to the specification symbol converted from the conversion symbol, the difference database 17 accumulating the difference giving part data to which the difference is given is provided, and the integrating means 22 is the converted code. It is preferable to refer to the difference database 17 when detecting the part data marked with.

As described above, if the component code converting means 36 automatically converts the conversion symbol into the specification symbol, the setting input operation for the specification indicated by the specification symbol is not necessary for the component including the conversion symbol in the component data. The design work can be simplified. However, there are parts with the same size and shape, but with different designs, such as colors and patterns, that have the same price and those that have different prices. It suffices to simply convert the conversion symbol into the specification symbol, but for parts with different prices, simply converting the conversion symbol into the specification symbol causes an error in the integrated price. Therefore, in the case where the component code converting means 36 gives a converted code to the converted specification symbol from the conversion symbol, and the integrating means 22 detects the converted code,
Accurate integration can be performed by making the adding means 22 refer to the difference database 17 and adding the difference of the difference giving component data extracted from the difference database 17 to the price of the component code extracted from the component database 14. As a result, even if the setting input work is omitted in the component code conversion means 36 and the design work is simplified, accurate integration can be performed.

In addition to the parts database 14, the CAD device 2 for detailed design is provided with revised price databases 15 and 16 in which the revised price data of the components whose prices have been revised are accumulated. Is desirable. The prices of a large number of parts data accumulated in the parts database 14 are rarely revised all at once, and the prices of some parts data are revised, and such price revisions are made several times a year. ing. The prefabricated building is calculated at the price at the time of ordering, not at the price at the time when the calculation work is performed. It is necessary to have the price of as a data. However, if a revised version of the entire parts database is provided for each partial price revision, the C
Since the AD device 2 is provided with a plurality of large-capacity component databases, the capacity of the storage device 10A such as a hard disk device may be insufficient. Therefore, as described above, the revised price databases 15 and 16 are provided in addition to the component database 14, and the component whose price is revised among the component data included in the component database 14 for each integration work Revised price database with data 1
If the revised price data is overwritten with the revised price data of 5 and 16, the revised price database 15 and 16 have a small capacity, so that the possibility that the storage device 10A is out of capacity is eliminated. If the price data before revision is also stored in the revised price databases 15 and 16, the parts database 14 can be returned to the original state after the integration is completed.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a CAD system 1 for creating a drawing of a unit type building which is a prefabricated type building according to the present embodiment. In addition, with unit type building,
It is constructed by a capsule method that combines multiple types of box-shaped building units. This CAD system 1
Is a CAD for detailed design to perform detailed design of prefabricated building
A design drawing creation device 2 which is a device, a production drawing creation device 3 which supports creation of a production drawing of each building unit forming a unit type building, and a specification drawing of a unit type building created by the design drawing creation device 2. It is provided with a data conversion device 4 which is a data conversion means for converting the constituent image data into text data consisting of only character codes, and a basic design CAD device 8 for performing basic design of a unit type building. Note that the design drawing creation device 2, the data conversion device 4, the design drawing creation device 2, and the basic design CAD device 8 are respectively configured by different computers, and data is passed between them. It can be done both online and offline.
Among them, offline, as shown in FIG. 1, data relating to the drawing is recorded on the floppy disks 5A to 5C and input / output.

The data converter 4 is installed near the design drawing generator 2, at least in the office of the sales department. Here, in the unit type building, a large number of types with different structures and dimensions are prepared for each part such as exterior, interior, fittings and equipment of the building, and even parts with the same structure and size are colored. Various variations with different finishes such as patterns and designs are prepared. As a result, even if the component parts are standardized and standardized, it is possible to meet the diverse requirements of customers.

The manufacturing drawing preparing device 3 is provided in a manufacturing department such as a manufacturing factory of a building unit, is operated by a production designer belonging to the manufacturing department, and is prepared by the design drawing preparing device 2 installed in the sales department. Based on the drawing, a production drawing in which the detailed structure of the building unit is set in detail is created. Further, the production drawing creation device 3 sends the drawing data of the production drawing produced by itself to the production device 6 including the CAM system, the NC machine and the like online, and the materials and parts forming the building unit to be produced. Is picked up from the manufacturing drawing to create a purchase order 7 addressed to each manufacturer who manufactures materials and parts.

On the other hand, the design drawing preparing apparatus 2 is a desktop computer as hardware which is fixedly used at one place and the software for detailed design is installed, and an estimate for construction contract is prepared. It is possible to quickly create a detailed design drawing as much as possible, change the created drawings, and integrate them. That is,
As shown in FIG. 2, the design drawing creating apparatus 2 includes a central processing unit 2A including a storage unit 10A and a computing unit 20, and a display unit 2B which is a display means using a CRT or the like.
And a man-machine interface including an input device 2C such as a keyboard and a mouse, an XY plotter device 2D for drawing a design drawing on a paper, a printer 2E for printing a quotation, and a floppy disk. Drive device
2F and is provided.

The storage device 10A includes a large capacity hard disk device. This storage device 10A
Is a drawing data storage means 11 that stores data relating to parts necessary for designing a unit-type building,
A drawing data storage means 12 for storing drawing data which is image data relating to the created drawing, and an integrated data storage means 13A for accumulating data necessary for integrating the price etc. of the aforementioned parts are provided. Drawing data storage means
11 shows the image data showing the shape (symbol) drawn in the drawing as the drawing data for each of a plurality of types of building units that form a unit-type building and its parts, and the symbols given to distinguish the parts. And the mounting height data indicating the height position where the component is mounted for each part with a symbol are accumulated. Here, in the image data of each part showing the shape drawn in the drawing, an installation reference point serving as a reference of the installation position in plan view is set.

The integrated data storage means 13A stores specifications for each of a large number of parts forming a unit-type building and part data including a part code for discriminating each part in detail. A component database, which will be described later, is constructed from the data. Explaining the part data further, a part such as a building unit is set with a large number of types of items having different specifications such as shape, structure, size and color for each part. Then, each component is given an item code as a component code set for each of these items, and the component data discriminates the name data representing the name and the last selectable item in detail. And the price data corresponding to each of these component code data.

The arithmetic unit 20 has a high-speed arithmetic element such as a microprocessor, is installed with various kinds of software, and has a multitasking function for concurrently processing a plurality of installed software in parallel. By inputting the data accumulated in the drawing data accumulating means 11 into the arithmetic unit 20 by a predetermined input operation,
A drawing creating means 21 for creating a drawing of the unit type building, and an integrating means 22 for integrating the unit type building based on the drawing created by the drawing creating means 21 and the data accumulated in the accumulated data accumulating means 13A, The image data of the drawing stored in the drawing data storage means 12
Drawing data output means 23 for converting into a format that can be stored in a disk, and drawing data storage means 1 of the storage device 10A
1, drawing data storage means 12 and integrated data storage means 13A
A control unit 24 for controlling data transmission / reception is formed by the above software.

As shown in FIG. 3, the drawing creating means 21 allows the operator to select and input a desired part from the data of each part accumulated in the drawing data accumulating means 11 in performing the design work. At the same time, it has a plan view creating section 31 for designating its position, more specifically, for selecting basic specifications such as structure and dimensions and for inputting data according to the basic specifications and position. The plan view creation unit 31 creates a plan view, which is a basic drawing, based on the input data. Here, each part is set with an installation reference point that serves as a reference for an installation position in a plan view, and the plan view creation unit 31 uses, as an installation reference point for each part, one of a floor plan and a roof plan of each floor. When a point on the drawing is designated, the point is determined as the installation position of the component.

The drawing creating means 21 includes a plan view creating unit.
In addition to 31, the initial setting input section 32 for inputting the initial setting data which is the basic information of the unit building to be designed and the initial setting data input by the initial setting input section 32 as shown in FIG. Initial setting holding unit to hold until design completion
33 and many types of parts that can be input at that time, and
A parts table generation unit 34 that generates a parts table showing the specifications, a mask generation unit 35 that generates a mask that covers a part of the parts table as necessary, and the initial setting data input by the initial setting input unit 32. A part code conversion unit 36 that converts a part code according to the drawing, a drawing data holding unit 37 that temporarily holds drawing data of a unit-type building under design, and a design when the design is completed or the design change of the unit-type building under design A design change detection unit 38 for detecting the presence or absence of a change is provided.

The initial setting input section 32 is for inputting initial setting data, which is basic data relating to the structure such as the number of floors of the building, the form of the entire building, and the ground bearing capacity of the site, at the beginning of the design. . The initial setting input unit 32 is provided with a function of displaying an initial setting screen on which a plurality of values and items of initial setting data are displayed on the display device 2B and allowing the operator to select from the initial setting screen. The initial setting holding unit 33 receives the initial setting data from the initial setting input unit 32 and is required to determine the specifications of the structural parts based on the above-mentioned initial setting data. Is to hold. Here, the initial setting data held by the initial setting holding unit 33 is output to the plan view creating unit 31 as necessary and distributed to other parts via the plan view creating unit 31. Has become. Regarding the unit-type building whose design has been completed once, the initial setting data is stored in the drawing data storage means 12, so that the value read from the drawing data storage means 12 is held in the initial setting holding section 33. Has become.

The parts table generator 34 creates a parts table showing the names and specifications of selectable parts when selecting and inputting parts.
It is a parts table generating means to be displayed on the display device 2B. The mask generation unit 35 is a mask means for hiding the specifications of each component that are not needed at each stage of the design work when the components table generation unit 34 generates the components table. The parts table generator 34 and the mask generator 35 will be further described. As the design work progresses, the specifications of the building to be designed,
Since the specifications of each part are clarified one after another, only those necessary for each stage of the design work are performed to perform only the operation of inputting the specifications of the clarified parts according to each stage of the design work. It is displayed on the parts list and hides unnecessary items.

For example, in order to specifically propose a unit-type building to a customer, it is only necessary to make an approximate estimate. In the initial stage of business, the parts table generated by the parts table generator 34 and the mask generator 35 are generated. Display mask 2B
As a part specification, a parts table showing only the shape and dimensions is displayed. Next, at the stage of creating a formal quotation to be submitted to the customer, a bill of materials showing specifications in which the price fluctuates due to differences is displayed on the display device 2B. Next, at the stage of creating the approval drawing for the contract to be submitted to the customer, the specifications that the building specifications differ due to differences, specifically, the fittings and the like in which the mounting direction and the mounting position differ A parts table showing specifications is displayed on the display device 2B. Finally, at the stage of ordering parts, the parts list showing the detailed specifications requested by the customer, specifically, the specifications such as colors and patterns, is displayed on the display device 2B, although they are not directly related to the price or the specifications of the building. It is supposed to be done.

The component code conversion unit 36 includes an initial setting holding unit 33.
While receiving the initial setting data held by the, from the components that have been selected and input, detects a component having a different component code depending on the initial setting data, the component code included in the component data of the part, It is a component code conversion means for converting the component code according to the initial setting. The parts code conversion unit 36 enables the structural specifications to be automatically selected even if there are a plurality of kinds of parts having the same appearance such as design but different structural specifications such as strength. Therefore, the operator's component selection range is not widened when the component setting input is performed.

As the part, there is a part in which a part code including a conversion symbol to be converted into a different specification symbol according to the initial setting data is set inside the part data. It also has a conversion function of converting a symbol into a specification symbol according to initial setting data. That is, some parts have the same size and shape, but different design specifications such as colors and patterns. In the component data of such a component, a specification symbol according to the design specification is set in the component code. This specification symbol is temporarily displayed as a predetermined conversion symbol on the parts table when setting is input. Then, the conversion symbol is automatically converted into a specification symbol by the component code conversion unit 36 according to the initial setting data. As a result, if the parts have the same dimensions, shapes, etc., and differ from the design specifications such as colors and patterns, and the design specifications are determined by the initial setting data, the part code conversion unit 36 The conversion symbol is automatically converted into the specification symbol according to the initial setting data, and it is not necessary to select the specification determined by the initial setting data, so the work of the operator is reduced. There is. In addition to the conversion function described above, the component code conversion unit 36 is also provided with a code assigning function for assigning a converted code to the converted specification symbol.

The drawing data holding unit 37 holds the data of the unit type building designed by the floor plan creating unit 31,
The data output from the plan view creation unit 31 is received via the component code conversion unit 36. Here, the data output from the plan view creation unit 31 is stored in the component code conversion unit 36.
Data that needs to be code-converted via the component code is converted when it passes through the component code converter 36.

The design change detecting section 38
Whether or not the drawing needs to be corrected is detected for each part, and the plan drawing creation unit 31 is prevented from making a drawing correction for a part that does not require correction. That is, there are multiple types of specifications that differ only in the detailed appearance, and there are design parts that have the same symbols shown in the drawings even if the specifications are different, and there is a design change for the unit building under design. If there is, the design change is detected for the design part, and the design change detection unit 38 is detected for the design part.
Is to instruct the plan drawing unit 31 not to perform the design change process. However, in the design change,
The specification of the design part is changed, and the price of the design part may fluctuate due to this specification change. Therefore, the design change detection unit 38 changes the specification part, that is, the changed design part before the change. The component data and the changed component data are sent to the integrating means 22.

In the drawing data storage means 11, a drawing database 11D composed of a large number of drawing data is formed.
The drawing data storage means 12 is formed with a drawing database 12D including a large number of drawing data.

In the accumulating means 22, as shown in FIG.
An integration control unit 41 that controls the procedure of the integration process in the integration means 22, an integration setting input unit 42 that selects the designed unit-type building that is the integration target, and sets the estimation conditions, and the integration target A quantity accumulator 43 that picks up parts from the data of a unit-type building, and a price calculator that calculates the estimated construction cost by stacking so-called man-made, which is the price of the picked-up parts and the construction man-hours set for the parts. 44 and a cumulative result holding unit 45 that temporarily holds the cumulative price and its breakdown.

Corresponding to the accumulating means 22, the accumulating data accumulating means 13A has specifications for each of a large number of parts forming a unit-type building and a part code for discriminating each part in detail. The parts database 14 in which a large number of data including is stored, and the revised price database 15 in which the revised price data of the components whose prices have been revised after the revision of the prices of the components are created and the revised price database 15 are created. The price difference was added to the revised price database 16 in which the revised price data of the component whose price has been revised after the revision was accumulated, and the component code of the component in which the difference occurs due to the specification symbol converted from the conversion symbol. Difference database 17 that accumulates the difference giving parts data, and product that accumulates the accumulated data for each unit type building including the accumulated price and its breakdown Results and database 18 are provided. In addition, the accumulated data including the accumulated price of the unit type building and its breakdown is the accumulated result database.
When accumulated in 18, the price held in the accumulation result database 18 and its breakdown are deleted.

In the integrating means 22 as described above, the integrating setting input section 42 allows the operator to set the estimation conditions of the unit type building, for example, the estimation reference date. The quantity integrating unit 43 takes out the drawing data of the unit type building from the drawing data storage means 12 and picks up parts from the drawing data. The amount calculation unit 44
Based on the result picked up by the quantity accumulating unit 43, the estimated construction cost on the above-mentioned estimated reference date is calculated.

Here, due to the price revision, the price of the parts to be adopted differs depending on the estimated reference date, and therefore the revised price database 15 includes only the parts having prices different from those of the parts database 14 due to the first price revision. The price data of the parts are accumulated, and the price data of the parts having the price different from that of the parts database 14 is accumulated in the revised price database 16 by the next price revision. Then, if the estimated reference date is before the first component price revision date, the price calculation unit 44 adopts the price data of the component database 14, and the estimated reference date is after the first component price revision date, and If it is before the parts price revision date of
The price data in the revised price database 15 is overwritten on the parts database 14, and the overwritten parts database
If the price data of 14 is adopted and the estimated reference date is after the next component price revision date, the price data of the revised price database 16 is overwritten on the component database 14, and the price data of the overwritten component database 14 is overwritten. Has been adopted. After the integration is completed, the parts database 14
Revised price database 15, 16 to restore the
Also stores the price data before revision.

When the amount calculation section 44 of the accumulating means 22 detects the component data including the converted code provided by the component code converting section 36 of the drawing creating means 21, it refers to the difference database 17 and includes the converted code. When the difference data corresponding to the component data is in the difference database 17, the difference of the difference giving component data extracted from the difference database 17 is added to the price of the component code extracted from the component database 14. This enables the component code conversion unit
By omitting the setting input work at 36, accurate integration is possible even if the design work is simplified.

In addition, the amount calculation section 44 includes a design change detection section 38.
Received the part data before and the part data after the change of the design part changed from, refer to these part data, and if the price fluctuates before and after the change, the price fluctuates due to the design change. Display device name and difference
The estimated construction cost is calculated after the confirmation by the operator.

The CAD device 8 for basic design is a portable computer which is a portable hardware, preferably a notebook computer, with the software for basic design installed, and it is possible to prepare a rough estimate. It is possible to quickly create possible basic design drawings, change the created drawings, and accumulate the costs. That is, the basic design CAD device 8 includes, like the design drawing creation device 2, a central processing unit 2A including a storage device 10B and a computing device 20, and a display device 2B using a CRT or the like.
A man-machine interface including an input device 2C such as a keyboard and a mouse, and a floppy disk drive device 2F are integrally provided in one casing, and an XY plotter for drawing a design drawing on a paper surface. The device 2D and the printer 2E for printing a quotation etc. can be arbitrarily connected (see FIG. 2).

Here, the storage device 10B of the basic design CAD device 8 has a storage capacity different from that of the storage device 10A of the design drawing creation device 2, and includes a hard disk device of a relatively small capacity smaller than the storage device 10A. It is composed of. Similar to the storage device 10A, the storage device 10B stores drawing data storage means 11 that stores data relating to parts necessary for designing a unit-type building, and drawing data that stores image data related to the created drawing. Storage means 12
And an integrated data storage means 13B for storing data necessary for integrating the prices and the like of the aforementioned parts. The data stored in the drawing data storage means 11 and the drawing data storage means 12 of the storage device 10B are the same as the data stored in the drawing data storage means 11 and the drawing data storage means 12 of the storage device 10A. Omit it.

In the integrated data storage means 13B, parts obtained by replacing the data related to specifications other than shape, size and price with blank data from each part data contained in the parts database 14 stored in the integrated data storage means 13A described above. A simplified parts database in which data is stored is provided. As a result, the part data stored in the simplified part database is blank data except for the shape, dimensions, and price, so the size of each part data is significantly reduced, and all parts for a unit-type building are Even if accumulated, the size of the simplified parts database does not increase, and it is possible to provide the simplified parts database in easily portable hardware such as a portable personal computer.

According to this embodiment, the following effects can be obtained. That is, a simplified component database is formed by replacing the component data contained in the component database 14 of the design drawing drawing apparatus 2 with blank data for data relating to specifications other than shape, size, and price. CAD database for basic design
Since it is provided in the device 8, the size of each part data is significantly reduced, and the size of the simplified parts database does not increase even if all parts for a unit-type building are stored, and the simplified parts database is portable. The CAD device 8 for basic design can be made portable because it can be provided in easily portable hardware such as a personal computer.

As a result, the simplified part database contains the part data of all parts, and there are no parts that cannot be input by the portable CAD device 8 for basic design, and at the stage of basic design at the visited site, It can fully meet the customer's request. Here, since the blank data of the component data that has been set and input can be automatically detected by the design drawing creating apparatus 2, it is possible to automatically detect the blank data and overwrite the necessary data on the detected blank data during the actual design. For example, it is possible to eliminate the conventional work of deleting and re-entering the component data, and to prevent erroneous writing on the drawing due to forgetting the correction work.

Further, when selecting and inputting the parts to be installed in the unit type building, a parts table generating section for displaying a parts table showing the names and specifications of the selectable parts on the display device 2B.
34 and a mask generation unit 35 that generates a mask that hides unnecessary parts of the specifications of each part at each stage of the design work when the parts table generation unit 34 generates the parts bill. At the stage, only the operation of inputting the specification of the clarified parts was performed.Therefore, the operation of inputting the specification that does not need to be input, the temporary input operation that is performed for the time being because the specification is unclear, and the temporary input operation Useless operations such as a correction operation for correcting the input specifications are omitted, and the design work can be efficiently performed. Moreover, if the parts table generation unit 34 and the mask generation unit 35 sequentially input the setting of the parts according to each stage of the design work, the selection range of the parts becomes narrow in the initial stage of the design work. Therefore, it becomes easy to make a judgment when selecting the specifications of parts, and even a sales person who does not have sufficient specialized knowledge about construction can perform input work.

Furthermore, among the parts that have been selected and input,
Designs a component code conversion unit 36 that detects a component having a different component code according to the initial settings set at the start of design and converts the component code included in the component data of the component into a component code according to the initial settings. It is provided in the drawing creation device 2,
Although the appearance of the design etc. is almost the same, for parts with different specifications such as strength, the part code conversion unit 36 automatically selects the specifications, so when the operator performs the setting input operation of the parts, The selection range of parts does not expand, making it easier to make decisions when selecting specifications for parts.Especially, even if a salesperson who does not have sufficient specialized knowledge about construction performs input work, the input work can be done in a short time. Can be done
Input mistakes can also be reduced.

Further, the component code conversion unit 36 is provided with a conversion function for converting the conversion symbol into a specification symbol according to the initial setting and a code adding function for adding a converted code to the specification symbol converted from the conversion symbol. When the accumulating means 22 detects the component data with the converted code, it refers to the difference database 17 and adds the difference of the difference giving component data extracted from the difference database 17 to the price of the component code extracted from the component database 14. Since it was done, the parts code conversion unit
Even if the setting input work is omitted in 36 and the design work is simplified, accurate calculation can be performed.

Further, the revised price databases 15 and 16 are provided separately from the component database 14, and for the components whose prices are revised among the component data contained in the component database 14 at every integration work, the revised component data is stored. Since the revised price data in the revised price databases 15 and 16 is used for overwriting, the prices of the parts are revised, and accurate integration according to the estimated reference date is possible, and the revised price databases 15 and 16 are also available.
Has a small capacity, it is possible to eliminate the possibility that the capacity of the storage device 10A is insufficient. Moreover, since the price data before revision is stored in the revised price databases 15 and 16,
After the integration is completed, the parts database 14 can be returned to the original state.

The present invention is not limited to the above-described embodiment, but includes the following modifications and the like. That is, in the above-described embodiment, the data conversion means is provided in a computer separate from the design drawing creation device, but the computer forming the design drawing creation device is provided with software that constitutes the data conversion means, whereby the design drawing creation device is created. The device and the data conversion means may be integrated. However, if provided separately as in the above-described embodiment, the effect of reducing the load on the design drawing creating apparatus can be obtained. Further, when the online method is adopted as the mutual data transmission means of the design drawing preparation device, the production drawing preparation device and the data conversion device, the design drawing preparation device, the production drawing preparation device and the data conversion device are connected to a LAN or the like. , A private communication network or a communication network prepared by a communication company such as a leased line or a public telephone line can be used.

[0050]

As described above, according to the invention described in claim 1, the size of each component data stored in the simplified component database is significantly reduced, and all components for a unit type building are stored. However, the size of the simplified component database does not become large, and the simplified component database can be provided in easily portable hardware such as a portable personal computer.
Can be portable. As a result, the simplified component database contains the component data of all the components, and there are no components that cannot be input by the portable CAD device 8 for basic design. Can fully comply with. Here, the blank data of the set and input part data is the CAD for the detailed design.
Since automatic detection is possible with the device, if blank data is automatically detected and the required blank data is overwritten at the time of actual design, it is not necessary to delete and re-enter component data as in the past. In addition, it is possible to prevent erroneous writing on the drawing due to forgetting the correction work.

Further, according to the invention described in claim 2, only the operation of inputting the specification of the clarified part is performed at each stage of the design work, so that the specification which does not need to be input is input. Since the operation and the specification are unclear, useless operations such as a temporary input operation that is performed for the time being and a correction operation that corrects the temporarily input specification can be omitted, and the design work can be efficiently performed. Moreover, if the parts table generation means and the mask means sequentially perform the setting input of the parts according to each stage of the design work, the selection range of the parts becomes narrow in the initial stage of the design work. Judgment when selecting specifications of parts becomes easy, and even a salesperson who does not have sufficient specialized knowledge about construction can perform input work.

Further, according to the invention of claim 3,
Since the part code conversion means that converts the part code according to the initial setting will automatically select the specifications, when the operator performs the setting input operation of the parts, the selection range of the parts does not expand and the specifications of the parts It is easy to make a decision when selecting, and even if a sales person who does not have enough specialized knowledge about architecture can enter data, it is possible to enter it in a short time. Can also be reduced.

Further, according to the invention described in claim 4, the converted code is added to the converted specification symbol and the integrating means detects the component data with the converted code. Then, referring to the difference database,
Even if the price of the part code extracted from the parts database is added to the difference of the difference giving part data extracted from the difference database, the setting input work can be omitted by the part code conversion means and the design work can be simplified. , Accurate integration can be done.

Further, according to the invention of claim 5,
For each part of the parts data included in the parts database, the price of which is revised each time the product is added, the parts data in the parts database is overwritten by the revised price data in the revised prices database, and the prices of the parts are revised. Even if it is done, it is possible to perform accurate integration at a price according to the estimated reference date, and since the revised price database has a small capacity, it is possible to eliminate the risk of lack of capacity of the storage device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an entire embodiment of the present invention.

FIG. 2 is a block diagram showing a CAD device for working design and a CAD device for basic design of the embodiment.

FIG. 3 is a block diagram showing a drawing creating unit and a drawing data accumulating unit according to the embodiment.

FIG. 4 is a block diagram showing an integrating means and an integrated data accumulating means according to the embodiment.

FIG. 5 is a diagram corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

1 Prefabricated (unit type) CAD system for buildings 2 Design drawing creation device as CAD device for detailed design CAD device for basic design 14 Parts database 15, 16 Revised price database 17 Difference database 22 means of counting 34 BOM generation unit as BOM generation means 35 Mask generation unit as masking means 36 Part code conversion unit as part code conversion means

Claims (5)

[Claims] 1. A CAD device for basic design for supporting a basic design work for defining an overall outline of a prefabricated building, and a CAD for detailed design for supporting a detailed design work for defining the contents of construction work based on the basic design. A CAD system for a prefabricated building including a device, wherein the CAD device for working design is for identifying the specifications and prices of each of a large number of parts forming the prefabricated building, and each part in detail. The CAD database for basic design includes a component database in which a large number of component data including a component code are accumulated, and the CAD device for basic design uses the shape data from each component data included in the component database of the CAD device for detailed design. Equipped with a simplified parts database that stores parts data in which data related to specifications other than dimensions and prices are replaced with blank data Prefabricated CAD system for the building, characterized in that there. 2. The CAD for prefabricated building according to claim 1.
In the system, the CAD device for detailed design includes display means for displaying a screen including a figure and a table and selectable parts for inputting parts to be installed in a prefabricated building at each stage of design work. A parts table generation means for displaying a parts table showing names and specifications on the display means,
A prefabricated building characterized in that, when the parts table generating means generates the parts table, a mask means for generating a mask for hiding unnecessary parts of the specifications of each part at each stage of design work is provided. CAD system for computer. 3. The prefabricated building CAD system according to claim 1 or 2, wherein the working design CA is used.
The D device detects a component having a different component code from the components that have been selected and input according to the initial setting set at the start of design, and initializes the component code included in the component data of the relevant component. A prefabricated building CAD system, characterized in that a part code conversion means for converting into a corresponding part code is provided. 4. The prefabricated building CAD according to claim 3.
In the system, as the component code of each component, a component code including a conversion symbol that is converted into a different specification symbol according to the initial setting set at the start of design is provided, and the component code conversion means is responsive to the initial setting. The CAD system has a conversion function for converting the conversion symbol into a specification symbol and a code adding function for adding a converted code to the conversion-converted specification symbol. An accumulating means for accumulating the formula building, and a difference database in which difference amount giving part data in which the difference is given to the part code of the part which causes the difference due to the specification symbol converted from the conversion symbol is provided, are provided. Is to refer to the difference database when detecting the component data with the converted code. Hub-type CAD system for the building. 5. The CAD for prefabricated building according to claim 4.
In the system, in addition to the parts database, the CAD device for working design is provided with a revised price database in which the revised price data of the revised parts is stored. C for building
AD system.