KR20110096726A - Method for painting bom using drawing recognition and system for thereof - Google Patents

Abstract

The present invention includes receiving an image of a drawing photographed through a webcam spaced apart by a set distance, detecting an edge and node portions of the drawing by image processing the image of the drawing; Outputting an image corresponding to the drawing on a screen based on edge and node portions, selecting a painting area among individual areas separated by the edges and nodes in the output image, and the painting A paint BOM method and system using drawing recognition comprising calculating an actual paint area for the paint area using the area on the webcam of the area, the set distance and the scale ratio of the drawing.
According to the paint BOM method and system using the drawing recognition, there is an advantage that can easily calculate the area of the painting area through the drawing recognition using a webcam and accordingly systematically manage the BOM of the paint to be used in the corresponding painting area. In addition, it can be very useful for the automatic calculation of paint requirements for the detailed ship design or production design in actual shipyards and the management of paint BOM accordingly. Moreover, it can reduce the manpower and labor costs necessary for calculating the BOM of the paint, and improve workability by increasing the work comprehension of the field workers who perform the painting work.

Description

Method for painting BOM using drawing recognition and system for description

The present invention relates to a paint BOM method and system using drawing recognition, and more specifically, to manage the bill of material (BOM) of the paint to be used for the paint portion by calculating the paint area of the paint portion through the recognition of 2D drawings. A bill of materials method and system using easy drawing recognition.

At the present time when the introduction of 3D CAD-based PLM (Product Life Cycle) system is an issue, the main medium of data exchange and movement is drawing. Currently, various managements are made based on the drawing information. The greater the proportion of production processes in the overall process, the greater the degree. In other words, in terms of utilization of existing legacy data, two-dimensional drawing-based information should be built first, which has industrial characteristics that can be extended to the next level.

 Under this concept, accurate management of paint-related information, which constitutes the largest portion of materials except steel in the shipbuilding industry, is essential. In addition, there is a need for a method for organizing painting related information based on 2D drawings.

Conventionally, by using the drawings to calculate the area by hand to calculate the amount of paint, or by calculating the area of the individual arbitrarily calculated by the user in the program, and then input the corresponding information back to the management system. However, mistakes or errors in this process are likely to adversely affect post-production. In fact, it is often reported that a large amount of damage has been caused by incorrect input of paint information in the field.

In addition, the manhours required in the process of calculating paint requirements cannot be ignored. In shipyard A, there are about 10 people assigned to the relevant service. In case of company B, there is a subcontractor for calculating paint volume. In addition, the labor cost in calculating the coating cost is a large part that cannot be ignored. In the case of C, sales are typically W1trn per month, of which 90% of operating costs, including materials and labor, are accounted for. In the case of the D shipyard, the calculation convenience is simply increased by adding the function of automatic calculation to the existing program, not the drawing center calculation. Therefore, there is a need for a method for managing painting-related information based on 2D drawings.

It is an object of the present invention to provide a paint BOM method and system using drawing recognition, which easily calculates the paint area of a paint portion through drawing recognition using a webcam and facilitates BOM management of the paint to be used for the paint portion.

The present invention includes receiving an image of a drawing photographed through a webcam spaced apart by a set distance, detecting an edge and node portions of the drawing by image processing the image of the drawing; Outputting an image corresponding to the drawing on a screen based on edge and node portions, selecting a painting area among individual areas separated by the edges and nodes in the output image, and the painting A paint BOM method using drawing recognition, comprising calculating an actual painting area for the painting area, using the area on the webcam of the area, the set distance, and the scale ratio of the drawing.

The outputting of the image on the screen may include displaying a list of unique codes assigned to each node on the image, and receiving the painting area, forming the painting area among the list of unique codes. Unique codes of the nodes may be selected. If the painting area is polygonal, an area of the painting area may be calculated using coordinate values of the nodes forming the painting area.

In addition, the paint BOM method using the drawing recognition, the information of the paint products available in correspondence with the types of the paint to be used for the painting, the types of the painting area, and the types of the paint or the painting area on the screen. Providing, and selecting, by the user, the type of the paint, the type of the paint area, and the paint product, using the price information of the selected paint product, the paint requirement for the actual paint area and The method may further include calculating a paint price, and storing the actual paint area, the paint requirement, and the paint price calculated corresponding to the paint area on the drawing.

In addition, the paint BOM method using the drawing recognition may further comprise the step of storing the information of the paint products corresponding to the type of the paint and the type of the coating area in a DB, wherein the information of the paint products is product name It may include one or a plurality of information selected from the manufacturer, the solid content ratio, the number of times of coating, coating thickness, price. Here, the calculating of the paint requirement and the paint price with respect to the actual paint area may be calculated using information on the solids content ratio, the number of coatings, the film thickness, and the price of the selected paint product. .

The present invention provides an input unit for receiving an image of a drawing photographed through a webcam spaced apart by a set distance, a detector for image processing the image of the drawing and detecting edge and node portions on the drawing; A display unit which outputs an image corresponding to the drawing on the screen based on the detected edge and node parts, and a painting area which is a desired area to be painted among the individual areas separated by the edges and nodes in the output image. Paint BOM system using a drawing recognition comprising a selection unit for selection and an calculating unit for calculating the actual painting area for the painting area using the area on the webcam of the painting area, the set distance and the scale ratio of the drawing; To provide.

The display unit may display a list of unique codes assigned to each node on the image, and the selection unit may receive selection of unique codes of corresponding nodes forming the painting area from the list of unique codes.

If the painting area is a polygon, the calculating unit may calculate an area of the painting area by using coordinate values of corresponding nodes forming the painting area.

The display unit may provide, on the screen, information on the types of paint to be used for the painting, types of the painting area, and paint products available in correspondence with the types of the paint or the painting area. And a type of the paint, a type of the paint area, and a paint product selected by a user, wherein the calculating unit uses the price information of the selected paint product, and the paint requirement and paint for the actual paint area. The price can be calculated.

The paint BOM system using the drawing recognition may further include a storage unit for storing the actual paint area, the paint amount, and the paint price calculated corresponding to the paint area on the drawing.

In addition, the paint BOM system using the drawing recognition may further include a DB unit for storing the information of the paint products corresponding to the type of the paint and the type of the painting area in the DB. At this time, the information of the paint products may include one or a plurality of information selected from the product name, manufacturer, solid content ratio, the number of times of coating, coating thickness, price. Here, the calculating unit may calculate the paint requirement and paint price for the actual paint area by using the information on the solid content ratio, the number of times of coating, the thickness of the film, and the price of the selected paint product. .

According to the paint BOM method and system using the drawing recognition according to the present invention, it is possible to easily calculate the area of the paint area through drawing recognition using a webcam and accordingly have the advantage of systematically managing the BOM of the paint to be used in the paint area have. In addition, it can be very useful for the automatic calculation of paint requirements for the detailed ship design or production design in actual shipyards and the management of paint BOM accordingly. Moreover, it can reduce the manpower and labor costs necessary for calculating the BOM of the paint, and improve workability by increasing the work comprehension of the field workers who perform the painting work.

1 is a flowchart of a paint BOM method using drawing recognition according to an embodiment of the present invention.
2 is a schematic diagram of a system for the method of FIG.
3 is a schematic diagram illustrating the method of FIG. 1.
4 is a screen configuration diagram for steps S110 to S140 of FIG.
5 and 6 are screen configuration diagrams for steps S160 to S190 of FIG.

The present invention relates to a paint BOM method and system using drawing recognition. Here, BOM (Bill Of Materials) is a meaning encompassing the bill of materials and product information, more specifically, the product, assembly, parts, drawings, technical data, attributes, design changes, cost, weight, process, maintenance, etc. It includes information. These BOMs are material information expressed in various ways depending on usage and construction methods, and provide reference data throughout the product's life cycle.

Here, the paint BOM according to the present invention refers to a BOM relating to a paint to be used in a region (painting region) to be painted on a design drawing. The paint BOM is determined according to the area of the paint area, the kind of the paint part, the kind of paint that can be used for the paint part, and the like.

1 is a flowchart of a paint BOM method using drawing recognition according to an embodiment of the present invention. 2 is a schematic diagram of a system for the method of FIG. The system 100 includes an input unit 110, a detector 120, a display unit 130, a selector 140, an operation unit 150, a storage unit 160, and a DB unit 170. Hereinafter, the paint BOM method using the drawing recognition will be described in detail with reference to FIGS. 1 and 2.

First, an image of the drawing 20 captured by the webcam 10 spaced apart by a set distance is received through the input unit 110 (S110). The webcam 10 is wired and wirelessly connected to the system 100. In addition, the drawing 20 is a 2D drawing, and includes a straight line, a curved line, or a combination of a straight line and a curved line.

3 is a schematic view for explaining the above method. Referring to FIG. 3 as an example of step S110, when the drawing 20 is placed where the webcam 10 at a predetermined distance is reflected, and then photographing the drawing 20 through the webcam 10, the photographed drawing 20 is taken. ) Is input to the input unit 110.

Thereafter, the detector 120 performs image processing on the image of the drawing 20 to detect edge and node portions on the drawing 20 (S120). Here, the edge means each line (straight line, curve, etc.) constituting the drawing 20, and the node means a point portion where the respective lines meet each other. This is confirmed from the contents of the display 130 of FIG. 3. That is, in FIG. 3, black lines represent edge portions and red dots represent node portions. Of course, the coordinates of the line and the node portion constituting the edge are obtained according to the detection process. Since methods for detecting edges and nodes in an image through the image processing have been variously known, a detailed description of the configuration and principle thereof will be omitted.

After the step S120, based on the edge and node portions detected by the detector 120, an image corresponding to the drawing 20 is output on the screen of the display unit 130 (S130).

4 is an example of a screen output to the display unit 130 on the system 100 to perform the above-described steps. If, in the 'WebCam' menu displayed on the left center of the screen, click the 'WebCam Start' button, the system 100 controls the webcam 10 for the step S110 Photographing of the drawing 20 is started. Of course, the distance between the drawing 20 and the webcam 10, that is, the set distance is set before the shooting, which is used for the calculation of the actual paint area later. The set distance is set by inputting a corresponding value or manipulating a bar on a 'Length (L)' menu displayed in the center of the screen of FIG. 4.

The captured image 20 undergoes the edge and node detection process of step S120 and is then output to the screen through the display unit 130 in step S130. Here, the image shown in the figure 20 refers to the left and right images shown in the upper side of FIG.

The left image is the original image detected through step S130, and the right image represents a case where a unique code is assigned to each node on the left original image. That is, the display unit 130 displays and provides the unique codes 0 to 22 for each node on the image. In addition, when looking at the 'Select Point' menu in the center of the right side of the screen, a list of the unique codes of the given nodes and a check box for checking the list are displayed.

After this step S130, in the image output on the display unit 130, the painting area is selected from the individual areas divided by the edge and the node (S140). That is, step S140 is a step of receiving a user's selection of an area to be actually painted by referring to an output image on the display unit 130.

In the example of FIG. 4, the total number of individual areas is 15. Here, the painting areas selected by the user are three areas within the red square boxes, which are areas determined by nodes 12, 13, 15, 17, 18, 20, 21, and 22.

Various methods may be used to select the painting area. For example, a method of receiving a corresponding painting area among the individual areas shown in FIG. 4 by a mouse, a touch, or the like from a user may be used.

In addition, among the list of unique codes displayed in the 'Select Point' menu, the unique codes 12, 13, 15, 17, 18, 20, 21, and 22 of the corresponding nodes forming the painting area are selected. The selection may be performed through the unit 140. As a selection method, various means such as the check box may be used.

After selection of the desired painting area is completed, the actual painting of the painting area is made using the area on the webcam 10 for the painting area, the set distance L, and the scale ratio of the drawing 20. The area is calculated (S150). For example, the calculation is performed when the calculation button is clicked after the painting area is selected through the 'Select Point' menu of FIG. 4.

The step S150 calculates an area on the webcam 10 of the painting area by using the coordinates of the edge and the node for the selected painting area. As an example, if the painting area is a polygon, the calculation unit 150 calculates an area of the painting area by using coordinate values of corresponding nodes forming the painting area. Since a method of calculating an area within a polygon using only nodes of a polygon, that is, vertices, is well known, a detailed description thereof will be omitted.

In addition, when the outer line of the coating area is not formed only in a straight line like the polygon, but includes a curved line or all formed in a curved line, the calculation unit 150 uses the outer plate development method to coat the coating area on the webcam 10. Calculate the area. The outer plate development is also a known area calculation method, so a detailed description thereof will be omitted.

If the set distance L between the webcam 10 and the drawing 20 is reflected on the result of the coating area area on the webcam 10 calculated as described above, the area of the painting area on the actual drawing 20 can be calculated. Can be. In addition, if the accumulation ratio of the drawing 20 is reflected in the coating area area value on the actual drawing 20, the actual painting area is easily calculated. For example, since all drawings in the shipyard use a 1: 100 accumulation ratio, if an accumulation ratio of 1: 100 is applied to the painting area area value on the drawing 20, the actual painting area is conveniently calculated automatically.

The actual paint area calculated in this way is output on the display unit 130 to provide information. As described above, the present invention has an advantage of easily calculating the coating area of the coating area through drawing recognition using the webcam 10 and facilitating BOM management of the paint to be used for the coating area.

After the actual paint area is calculated as described above, information on the paint products to be used in correspondence with the types of paint to be used for the paint, the types of the paint zone, and the types of the paint or the paint zone can be displayed. 130 is provided on the screen (S160).

In addition, the type of the paint, the type of the coating area, and the available paint products are selected by the user through the selection unit 140 (S170). For this step S170, before the step S170, the information of the paint products corresponding to the type of the paint and the type of the coating area on the DB unit 170 is stored in the DB. The storage process of the DB unit 170 is irrelevant at any time before the step S170.

Then, after step S170, by using the price information of the paint product selected by the user, the paint amount and paint price for the actual paint area is calculated through the calculation unit 150 (S180). Thereafter, the actual coating area, the paint requirement, and the paint price calculated corresponding to the painting area on the drawing 20 are stored in the storage unit 160 (S190).

5 and 6 are screen configuration diagrams of the display unit 130 for steps S160 to S180. The embodiment is as follows. First, a screen for selecting a kind of paint is provided in the form of FIG. 5. This relates to a large category of paints, and the examples suggest a total of three. Of these three major categories, if one type of paint to be used in the corresponding coating area is selected through a check box, the screen of FIG. 6 is switched.

Referring to FIG. 6, specific paint products usable in the large category of paints selected in FIG. 5 and types of specific paint areas are shown. Here, the kind of the coating area indicates the kind (ex, bottom) of the coating part. In addition, as product information corresponding to a specific paint product, information on a product name, a manufacturing company, a solid volume fraction, the number of coatings, a coating film thickness (dry coating film thickness, a reference coating film thickness), a price, and the like are displayed together on the screen. Of course, the type of paint, the type of the coating site, the detailed information for each paint product corresponds to information that can be arbitrarily added, deleted and changed as necessary on the DB unit 170.

Subsequently, when the 'calculation' button is clicked, the calculation unit 150 uses the information regarding the solid content volume ratio, the number of times of coating, the thickness of the coating film, and the price of the corresponding coating product selected from the specific coating products. The paint requirements (liters, L) and paint prices (in won) for the actual paint area (theoretical application area) are calculated, and the results are shown in the table at the bottom of the screen. In the case of Figure 6, the type of the coating area is the bottom (bottom) portion, and shows the calculation result for the case where the paint product name is selected as eh2350.

Thereafter, when the user clicks the 'save' button, the storage unit 160 stores information on the actual paint area, the paint amount, the paint price, etc. in the form of an Excel file.

The above results correspond to the paint BOM (material specification) for the painting area, and can systematically manage all the obtained paint BOM information, and can be usefully used when managing the paint BOM in a shipyard. . In addition, according to the data generated in conjunction with the design information of the drawing 20, it is possible to accurately estimate the amount, and there is an advantage in the management after ordering.

In addition, it is possible to automatically calculate the paint requirements in the detailed ship design or production design. In addition, it is possible to manage the paint company-wide through the paint BOM, and to improve the workability of the field workers can improve the workability.

In addition, it enables easy exchange of BOM data between large shipyards and subcontractors, and the subcontractors can reduce the man-hours, leading to the shipyard's delivery date, and automatic calculation of paint BOM without additional manpower. This has the advantage of saving labor costs. Of course, the shipyard's purchasing team can purchase and order more precise amounts of paint than conventional manual calculation, which is advantageous in inventory management.

Moreover, when the painting automation of the vessel is made, it is possible to guide the painting operation by transmitting the information of the required paint information and the painting method automatically to the robot, it can effectively contribute to the painting automation.

100: Paint BOM system using drawing recognition
110: input unit 120: detection unit
130: display unit 140: selection unit
150: calculator 160: storage
170: DB unit

Claims (12)

Receiving an image of a drawing captured by a webcam spaced apart by a set distance;
Image processing the image for the drawing to detect edge and node portions on the drawing;
Outputting an image corresponding to the drawing on a screen based on the detected edge and node portions;
Selecting a painting area among individual areas separated by the edges and nodes in the output image; And
And calculating an actual coating area for the painting area by using the area on the webcam of the painting area, the set distance, and the scale ratio of the drawing. The method according to claim 1,
Outputting the image on the screen,
Displays a list of unique codes assigned to each node on the image,
The step of selecting the painting area,
Paint BOM method using a drawing recognition to select the unique codes of the nodes forming the painting area of the list of the unique code. The method according to claim 1 or 2,
If the painting area is a polygon, a paint BOM method using drawing recognition to calculate the area of the painting area using the coordinate values of the nodes forming the painting area. The method according to claim 1,
Providing, on the screen, types of paints to be used for the painting, types of the painting area, and paint products available in correspondence with the types of the paint or the painting area;
Receiving, by a user, a kind of the paint, a kind of the coating area, and a paint product; And
Using the price information of the selected paint product, the paint BOM method using a drawing recognition further comprising the step of calculating the paint requirement and paint price for the actual paint area. The method according to claim 4,
And storing the actual painting area, the paint requirement, and the paint price calculated corresponding to the painting area on the drawing. The method according to claim 4,
And storing information of the paint products corresponding to the kind of the paint and the kind of the painting area in a DB.
The information of the paint products includes one or a plurality of information selected from product name, manufacturer, solid content ratio, coating frequency, film thickness, price information,
Calculating the paint requirement and paint price for the actual paint area,
A paint BOM method using drawing recognition calculated using information on the solids content ratio, the number of times of painting, the thickness of the coating film, and the price of the selected coating product. An input unit configured to receive an image of a drawing captured by a webcam spaced apart by a set distance;
A detector configured to image the image of the drawing to detect edge and node portions on the drawing;
A display unit configured to output an image corresponding to the drawing on a screen based on the detected edge and node parts;
A selection unit for selecting a painting area, which is an area to be painted, from the individual areas divided by the edges and the nodes in the output image; And
And a calculation unit which calculates an actual coating area for the painting area by using the area on the webcam of the painting area, the set distance, and the scale ratio of the drawing. The method according to claim 7,
The display part,
Displays a list of unique codes assigned to each node on the image,
The selection unit,
A paint BOM system using drawing recognition that selects unique codes of the nodes forming the painting area from the list of unique codes. The method according to claim 7 or 8,
The calculation unit,
If the painting area is a polygon, a paint BOM system using drawing recognition to calculate the area of the painting area by using the coordinate values of the nodes forming the painting area. The method according to claim 7,
The display unit,
Provide on the screen information on the types of paints to be used for the painting, the kinds of the painting areas, and the paint products available in correspondence with the kinds of the paints or the painting areas,
The selection unit,
Receiving the type of the paint, the type of the coating area, and the paint product from the user;
The calculation unit,
A paint BOM system using drawing recognition that calculates paint requirements and paint prices for the actual paint area using the selected price information of the paint product. The method according to claim 10,
And a storage unit for storing the actual painting area, the paint requirement, and the paint price calculated corresponding to the painting area on the drawing. The method according to claim 7,
Further comprising a DB for storing the information of the paint products corresponding to the type of the paint and the type of the coating area in the DB,
The information of the paint products includes one or a plurality of information selected from product name, manufacturer, solid content ratio, coating frequency, film thickness, price information,
The calculation unit,
A paint BOM system using drawing recognition for calculating paint requirements and paint prices for the actual paint area using information on the solids content ratio, the number of coatings, the film thickness, and the price of the selected paint product.

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