KR100945066B1 - Measurement accuracy managing method of ship building blocks and computr readable recorded media - Google Patents

Abstract

The present invention relates to a method for measuring and analyzing the dimensional accuracy of a primary hull block used for assembling a hull of a ship or offshore structure, more specifically, more efficient and accurate information processing on the measurement point than in the prior work time The present invention relates to a quality control method of the hull block that can significantly shorten and increase the production efficiency.

According to the present invention, in the method for controlling the hull block in which the dimensional accuracy of the primary hull block is compared and analyzed with the designed hull block, (a) generating a plurality of control points in the three-dimensional design drawing of the hull block; (b) generating a check sheet including coordinate information of each of the generated management points, (c) acquiring measurement point information measured using an optical wave measurer for the first manufactured hull block; (d) aligning the control point and the measurement point with each other according to a predetermined criterion, and (e) interconnecting the control point and the measurement point for analyzing the deviation between the control point and the measurement point that have been aligned. Provided are a quality control method for a hull block and a computer-readable recording medium in which a program thereof is embedded.

Hull block, 3-D design, control point, measuring point, conventional measuring instrument, movement of the hull block, rotation, leveling, control point-to-measuring point alignment, control point-to-measuring point connection, deviation vector, deviation analysis, 3-dimensional coordinates, conventional measuring instrument, complete Check sheet

Description

Measure accuracy management method of ship building blocks and computr readable recorded media}

The present invention relates to a quality control method of the hull block, and more specifically, the first manufactured hull block is precisely measured and analyzed before reworking to correspond to the assembly standards and the original design drawings to facilitate reworking work efficiency The present invention relates to a quality control method of a hull block and to a computer readable recording medium including the same.

In general, ships or offshore structures are manufactured by individually manufacturing unit blocks, which are necessary for assembling the hull, and welding them together. However, even when the unit hull block is primaryly processed as designed, the dimensions of the unit hull block are distorted due to cutting and welding deformation during machining, and thus have different values from the actual designed values. Therefore, if the assembly work, etc. without correcting this problem occurs that the assembly of the ship, etc. is impossible.

1 is a schematic diagram of a ship quality control method according to the prior art, Figure 2 is a view showing an example of a check sheet manually generated and displayed on the two-dimensional design drawing of the hull block according to the prior art, FIG. 3 is a view showing an example of a completed check sheet manually generated and displayed by measuring point coordinates and deviations on a two-dimensional design drawing of a hull block according to the prior art.

 As shown in the drawing, conventionally, a production drawing, which is a completed two-dimensional design drawing, is taken over in the field, and a worker manufactures the hull block according to the design drawing, and then measures the appearance of the hull block at a plurality of points using a light wave measuring instrument. After sending the data about the measuring point of the measuring device to the storage device such as PDA, wired or wireless, and inputting the control point (design point) and the coordinate value of the measuring point by hand while checking the measuring point information stored in the PDA with the naked eye. In this way, the final report for quality control was completed.

However, such a conventional method is a highly skilled quality control technician because it is required to compare and write the control point corresponding to the design point in the check sheet on the basis of the information of the measured measurement point and calculate the deviation additionally. There is a disadvantage in that, even a skilled technician takes a very long time for quality control, which has been a major factor in decreasing productivity and delaying the ship's drying rate.

Therefore, it has been pointed out that know-how on quality control of ships has been passed on to third parties, which limits the generalization, objectification and standardization, and remains in the realm of special skilled individuals, making it difficult to continuously accumulate, develop and improve technology. Therefore, there is an urgent need for the development of a method capable of performing the quality control of the hull block more quickly and efficiently and standardizing the quality control technology.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to systematically control, standardize, and automate the quality control of a ship, thereby quickly and efficiently performing the quality control work of the hull block without excessively depending on the skill of the individual operator. It is to provide a method (system) to be able to perform.

It is another object of the present invention to provide a computer readable recording medium having a program therein for realizing the above quality control method.

In the present invention, in order to achieve the above object, in the hull block quality control method for comparing and analyzing the dimensional precision of the hull block produced primarily with the designed hull block, (a) a number of three-dimensional design drawings of the hull block Generating a control point of (b) generating a check sheet including coordinate information of each of the generated plurality of management points, and (c) measuring the first manufactured hull block using an optical wave meter. Obtaining measurement point information, (d) arranging the control point and the measurement point to each other according to a predetermined criterion, and (e) interconnecting the control point and the measurement point to analyze the deviation between the control point and the measurement point that have been aligned It provides a quality control method of the hull block comprising a.

Between steps (a) and (b), it is preferable to further include the step of moving, rotating and setting the level of the designed hull block to match the position and direction of the field assembly reference.

After the step (e), it is preferable to further include a precision analysis step of precisely analyzing the degree of deformation of the hull block by rotating or moving the hull block or the measuring point.

After the precision analysis step, the step of generating a complete check sheet containing the design coordinates and the deviation value of the control point may be further included.

The generation of the management point may be performed by any one method selected from an automatic snap method, a plane-line cross-calculation method, a curve length method, a straight line length method, and a manual input method of control point coordinates.

The rotation of the designed hull block may be performed by any one method selected from one-point rotation (displacement), one-point rotation (angle), two-point rotation (displacement) and two-point rotation (angle) method. It can be performed by.

In the step (d), the alignment of the control point and the measurement point may be performed by a two-point axis conversion or a three-point axis conversion method.

In the step (e), the connection between the control point and the measurement point may be performed by any one method selected from a location reference management point-measuring point connection method, a name reference management point-measure point connection method, and a manual management point-measure point connection method. have.

According to another aspect of the invention, (a) generating a plurality of management points in the three-dimensional design of the hull block, (b) generating a check sheet including the coordinate information of each of the generated plurality of management points (C) obtaining measurement point information measured using an optical wave measurer for the primary manufactured hull block, (d) aligning the control point and the measurement point with each other according to a predetermined criterion, (e) Provided is a computer-readable recording medium incorporating a quality control program for a hull block comprising the step of interconnecting a control point and a measurement point for analyzing the deviation between the control point and the measurement point that have been aligned.

According to the present invention, since the management point can be generated by various methods in the three-dimensional design model, it is easy to calculate the design information of the block. In addition, it is easy to process and process the information about the measuring point acquired by the light wave measuring instrument, etc., and the alignment and connection work with the control point is automatically performed, so even the unskilled person of the hull block can accurately perform the quality control work. There is an advantage that the time required to significantly shorten. In addition, the training period for the quality management of new personnel is shortened and the educational effect is very good.

In addition, since the quality control work of the ship can be completed accurately in one time, the quality control work is inaccurate, and the waste of materials, cost and time caused by the second and third repetitive machining of the hull block can be drastically reduced. There is this.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and principle of the present invention.

4 is a schematic diagram of a ship quality control method according to the present invention. In the present invention, a drawing of the hull block is generated by using a three-dimensional CAD program, and after generating management points, which are positions to be managed on the hull block, the hull block actually measured by a light wave measuring instrument or the like is designed to design the degree of deformation of the hull block. After comparing and analyzing the figures, the final completed quality check sheet (completion check sheet) is output. The main process is performed as follows.

5 is a process chart showing each step of the hull block quality control method according to the present invention in the working order. The block quality management method of the present invention is largely a design drawing generation step (ST1), management point generation step (ST2), block rotation and movement step (ST3), check sheet creation step (ST4), measuring step (ST5), control point It comprises a measuring point alignment step (ST6), management point-measuring point connection step (ST7), a precision analysis step (ST8) and a completion check sheet preparation step (ST9).

In the design drawing generation step (ST), a three-dimensional design drawing of each hull block to be used for building a ship is generated. There are no limitations on CAD tools for creating three-dimensional designs, but Tribon, AvevaMarine, Intelship, ShipConstruct, and PDMS, which are mainly used for ship design Design programs such as and the like may be used, and the three-dimensional hull block drawings generated in the design program may have extensions such as DXF, IGES, IGS, SAT, and the like. However, if a design drawing has already been created, simply import the drawing and work on it, so the step of generating the design drawing may be omitted. In this case, the drawing file is read and displayed on the monitor.

In the present invention, but to develop and use a dedicated program that embodies the technical spirit of the hull block quality control method, the technical scope of the present invention should not be construed as being limited thereto.

In the management point generation step (ST2), it is a step of defining and creating a management point, which is each important point of the hull block, using a newly generated three-dimensional CAD design drawing or a previously generated three-dimensional CAD design drawing. In order to build a ship, the blocks constituting each part of the hull are separately manufactured and then assembled and welded. In the manufacture of the hull block, the cutting and welding processes are usually performed using thick plates or shaped steel materials. Unlike the designed standard, it will have a machining error. If the assembly of the hull block with such a machining error as it is, the design and specifications are different from the original will not be able to assemble the ship. Therefore, when the ship is manufactured, it is inevitably required to compare the design dimensions of the hull block originally designed and the dimensions of the hull block after processing, and the difference must be corrected by post machining. In this process step, it is a step to create a control point, which is a design point for performing such a task. A control point means a point for performing quality control. The creation of control points can be done in several ways: using auto snap, using face-to-line cross-counting, using curve lengths, using straight lengths, and managing point coordinates manually. Such as through input.

6 is a view showing an example of creating a management point using the automatic snap function in accordance with the present invention. As shown in the drawing, when a mouse or the like of a computer is placed on the corner 11 of the hull block 10 and selected by clicking, the coordinate value for the corresponding corner 11 can be displayed on the right side of the program window. By selecting several points in this way, it is possible to create a number of control points located on the hull block.

7 is a view showing an example of generating a control point using a plane-line cross-calculation according to the present invention. As shown, quality control is mainly performed at the point 14 where the outer plate 12 and the inner member 13 intersect. However, in most cases, the end of the inner member 13 does not intersect with the side line of the outer plate 12, so it is not easy to accurately find the intersection point. In this case, the coordinates of the intersection point 14 can be easily obtained through the plane-line intersection calculation. That is, when the outer plate 12 is selected with a mouse or the like and then the inner material 13 is selected, a virtual intersection point 14 at which the extension line of the inner material 13 and the outer plate 12 meet is selected as a management point.

8 is a view showing an example of creating a management point using the curve length in accordance with the present invention. If there is no internal material as a reference when the control point is generated, the control point may be generated using the curved length (curve) of the outer plate 15. That is, after selecting the corresponding curve of the outer plate with a mouse or the like, the curve start point 16 is selected using the mouse. After inputting the curve length is located on the corresponding curve of the outer plate 15 and a point separated by the input curve length from the starting point 16 is selected as the management point.

Similarly, when the outer shell of the hull block or the like has a straight shape, a control point can be generated using the straight line in a similar manner to the case of using the aforementioned curved length.

9 illustrates an example of generating a management point through manual input of management point coordinates according to the present invention. As shown, the management point may be created by a method of directly inputting a coordinate value after defining the management point name.

It is desirable that a plurality of management points created in the above-described manner can later be recalled on the monitor and modified or deleted.

In the block rotation and movement step ST3, operations of rotating, moving and leveling the designed hull block are performed. The hull block according to the three-dimensional CAD drawing has a position and orientation as specified at the time of design, and is different from the position and orientation shown on a computer monitor when the actual hull block is manufactured or assembled in the field. Therefore, it is necessary to convert the position and direction of the designed hull block to the state as assembled in the field.

10 is a view showing an example of moving the hull block in accordance with the present invention. The movement of the designed hull block is to reset the position and orientation of the block with the origin of any point on the hull block. That is, when the operator selects an arbitrary management point 22 of the hull block 21 and inputs coordinates of a point to be moved in the lower right window of the drawing, the selected management point 22 moves to the corresponding moving coordinate and the design block The whole moves accordingly. Thus, the coordinates of the previously generated management points of the hull block are also changed accordingly.

11A-11D show different examples of rotating hull blocks in accordance with the present invention. Depending on the shape of the hull block in the assembling step in many cases to lay the block sideways or work, in the quality control method of the present invention through the rotation function of the design block rotates the block in the same way as the assembled state and management according to the state You can get the design coordinates of a point. FIG. 11A is by the one-point rotation (angle) method, FIG. 11B is by the one-point rotation (displacement) method, FIG. 11C is by the two-point rotation (angle) method, and FIG. 11D Is by the two-point rotation (displacement) method.

As shown in FIG. 11A, the one-point rotation (angle) method is a method of rotating a block using one management point selected by a user and a global axis (x, y, z axis) passing through the management point. And the amount of rotation is given in degrees. First, a management point to be the rotation origin 23 is selected with a mouse, and then a rotation axis passing through the rotation origin 23 is selected. Finally, if the desired rotation angle is input, the block 21 rotates by the input angle.

As shown in FIG. 11B, the one-axis rotation (displacement) method is similar to the one-axis rotation (angle) method but rotates the block 21 using a displacement rather than an angle. First, after selecting a control point to be the rotation origin 23 with a mouse or the like, select a rotation axis from the x, y, z axis passing through the rotation origin in the dialog box at the lower right as shown. Next, after selecting the rotation point 24 to be rotated with a mouse or the like and inputting a moving displacement in a dialog box, the block moves by the corresponding displacement.

As shown in Fig. 11C, the two-point rotation (angle) method is a method of using two control points when setting the rotation axis. In other words, a straight line passing through two management points selected by the user is used as the rotation axis. First, using the mouse to select the two management points (25a, 25b) to be the axis of rotation of the hull block 21, input the angle to be rotated in the dialog box and press the rotate button to rotate the block.

As shown in FIG. 11D, the two-point rotation (displacement) method is similar to the two-point rotation (angle) method, except that the rotation is performed using a displacement rather than an angle. First, two management points 26a and 26b to be rotated axes are selected, and then the rotation point 27 is selected to be a point to be rotated. Finally, enter the rotation displacement in the dialog box at the bottom right corner and run the block by the given displacement.

Most of the blocks are assembled on the pin jig, and the shape of the blocks also varies depending on the level of the assembly plate. Therefore, in the present invention, through the level setting function of the block to rotate the design block in the same state as the block placed on the assembly plate, it is possible to obtain a design point of the control point according to the state. 12 is a diagram illustrating an example of a method of setting a level of a design block. Level setting of block 21 may be performed using three management points 28a, 28b, 28c. That is, it may be performed by selecting any three management points 28a, 28b, 28c and then converting after inputting a level value in each coordinate as shown in the lower right window. When setting the block level, the three control points as reference should be chosen not to be on the same plane. That is, if three management points are located on the x-z plane or the y-z plane, the block level setting is not possible.

In the check sheet preparing step ST4, a block diagram having the generated management point information is stored as a design file and a check sheet is output. The design file is a file that contains the design coordinates of the control point. It is then used to perform the design-measurement deviation analysis by comparing the measured data of the block with a field measuring instrument. 13 shows an example of a quality control sheet (quality check sheet) of the block. The check sheet is a drawing showing design coordinates, lengths, angles, and the like necessary for the shape and quality control of the block, and is used as an auxiliary means when measuring the site. In addition, when the block measurement and deformation analysis described below is completed, the final result is also marked on the check sheet. The check sheet of FIG. 13 is a check sheet for block measurement, and only design coordinates are indicated.

In the measuring step ST5, a measurement operation is performed in order to know the degree of deformation of the hull block formed through machining operations such as cutting and welding at an actual work site. The measurement of the hull block is carried out using a light wave measuring instrument, which initially determines the measurement origin from which the measurement starts and continuously measures in a constant direction from this reference point. That is, the measuring point 1 can be determined and the measuring point can be measured so that measuring point 2 forms the x axis as the origin, or measuring point 1 is the origin, measuring point 2 is the x axis, and measuring point 3 is the y axis. . As a method of measuring a hull block using such a light wave measuring instrument, it can measure using a method known previously. Data such as coordinate values of each measuring point measured by the conventional wave detector is stored in the storage means connected to the conventional wave detector. As the storage means, a PDA, etc. may be used, and the PDA may be connected to a light wave detector by wire or wirelessly. Afterwards, the file stored in the memory of the PDA or the like may be read in by inputting a computer having a quality control program embedded therein.

FIG. 14 is a diagram illustrating an example in which a measurement point is generated by a user directly inputting measurement point coordinates to a quality control program rather than the measuring method using the above-described light wave measuring instrument. Coordinate values of the respective measuring points shown in the figure are displayed in the right dialog box, and the user can directly input the coordinate values of the corresponding measuring points. It can be seen that several numbers are entangled in the center of the figure, indicating the name of each measuring point. It can be seen that the measuring points with each measuring point name have the corresponding coordinate values.

In the above example, the data file of the control point measured by the conventional wave detector is read into the computer on which the quality control program is installed. However, the measurement module is configured in the quality control program itself, and the block is measured by connecting to the conventional wave detector. Data may also be obtained and delivered. In other words, measuring points 1 and 2 can be automatically connected to the corresponding control points to proceed with the measurement. In this case, since the measuring point is automatically aligned to the control point in the measuring step, data is acquired, so that the alignment work for connecting the control point and the measuring point separately after the measurement is completed can be omitted.

In the control point-measuring point alignment step ST6, an operation of aligning the management point and the measurement points of the originally designed block to correspond to each other is performed. The control point (design point) of the block and the measuring point of the corresponding spot block do not exactly match each other. In particular, when a block is measured by a single measurement (standard measurement) without interlocking with a control point (design point), the position and rotation direction of the control point and the measurement point appear completely different. In this case, before analyzing the deviation between the control point and the measurement point, the work of aligning the control point and the measurement point according to a certain criterion and having a one-to-one correspondence should be preceded. In the present invention, the control point and the measurement point can be aligned with each other by using two or three reference points.

15 illustrates an example of alignment using two reference points according to the present invention. In this method, two management points 32a and 32b and two measurement points 33a and 33b are aligned. That is, four points are used for the alignment points: two control points and two measurement points. First, the two measuring points to be converted are selected with a mouse or dialog box by keyboard input, etc. The first point forms the reference axis and the second point forms the reference axis passing through the two points. Next, select two control points (design points) that will correspond to the measurement points of the conversion target selected above, and click the Convert button in the dialog box at the bottom right of the screen.

16 illustrates an example of alignment using three reference points according to the present invention. In this method, three management points 34a, 34b, and 34c and three measurement points 35a, 35b and 35c are aligned. First, three measurement points 35a, 35b, and 35c to be converted are selected by mouse or keyboard input, similar to the two-point reference method described above. The first point is the origin, the second point is the reference axis, and the third point is the reference plane through these three points. Next, by selecting and converting the management points 34a, 34b, 34c corresponding to these three points in the same manner, the management points and measurement points, which are design points on the hull block 21, are aligned to correspond to each other.

In the control point-to-measure point connection step (ST7), after the alignment of the control value generated in the design drawing with the measured value which is the coordinate value of the block processed at the actual site is completed, the analysis of the coordinate deviation between the control point and the vertex is performed. In order to perform this, a task of setting which control point and which measurement point are connected is performed. In the present invention, the control point-measurement point connecting operation may be performed in various ways, or may be directly connected manually or manually based on the point name or the point position. The method of connecting based on the position of the point is to automatically connect the measuring point closest to the control point.

17 is a view showing a method of connecting a control point-measuring point on a location basis according to the present invention. As shown in the figure, when a numerical value of a connection range for connecting a control point and a measurement point is input to a pop-up window in the center of the screen, the control point-measurement point is connected based on the points within the corresponding numerical range. That is, the process of matching and sorting one-to-one between control points and measurement points has been completed through the previous steps, so that the measurement points that exist within the radius range of the distance corresponding to the numerical value of the connection range with respect to each control point correspond to each other. It will be connected to the control point and compared. When control point-measurement points are connected, deviations between coordinates of control point-measurement points are analyzed and calculated by the quality control program and appear in the work window on the right as shown.

18 is a view showing a method of connecting a control point-measurement point based on a point name according to the present invention. As shown, this method automatically connects two points when the point names of control points and measurement points are the same. Useful method. In the quality control program embodying the present invention, if the connection method of the point name criteria is selected, the control point-measurement point is connected with the same point name to calculate the deviation between the coordinates and show it in the right window.

In addition, the user may directly select the management point-measurement point and manually connect it manually. FIG. 19 illustrates a method of manually connecting the management point-measurement point according to the present invention. As shown in the drawing, the connected management point 42 and the measurement point 41 may be selected by a mouse or directly input.

In the precise analysis step ST8, a detailed analysis is performed to adjust the ideal deviation by moving and rotating the hull block with reference to the deviation between the control point and the measurement point where the deviation analysis is completed. According to the present invention, the control point-measurement point connection step (ST7) through the above-described step is calculated because the deviation between the control point and the measurement point is calculated by reworking the hull block as much as the deviation in the field can be completed the hull block of the desired design specification . Therefore, the precision analysis step ST8 is not necessarily essential. However, there are parts that are difficult to rework due to the structure of the hull block and relatively easy to rework. Therefore, by precisely adjusting and moving the control point-measurement point of the hull block again, it is possible to improve the work efficiency by relocating the difficult part to have no or small deviations and to increase the deviation of relatively easy parts. have.

The present invention provides an arrow-shaped deviation vector having a color or length corresponding to the magnitude of the deviation in each axis direction in order to facilitate the precise analysis work using the movement and rotation functions. 20 is a diagram illustrating a deviation vector 51 for performing a precision analysis according to the present invention. In the drawing, the magnitude of the deviation can be seen at a glance by using the color of the deviation vector 51 as in the legend.

The rotation function in this step is performed on the basis of displacement or angle, which includes one-point rotation (displacement), two-point rotation (displacement), one-point rotation (angle) and two-point rotation ( Angle). The rotation method can be performed by using the rotation axis and the rotation angle. However, when performing block quality control, it is more effective to rotate by using the displacement displacement in the x, y, z direction of the point to be rotated than using the rotation angle. to be. There are two types of displacement reference rotation methods, depending on how the rotation axis is set. One of them is a one-axis rotation (displacement) and the other is a two-point rotation (displacement).

One-point rotation (displacement) method is to rotate the hull block 21 or the measuring point using the displacement in the x, y, z axis direction to be rotated. 21 is a view showing an example of performing a precise analysis by a one-point rotation (displacement) method according to the present invention. The one-point rotation (displacement) method uses one measuring point 62 selected by a user and a global axis (x, y, z axis) passing through the measuring point 62 as a rotation axis. First, the measurement point 62 to be the rotation origin is selected by a mouse or direct input. Next, after selecting the rotation axis in the dialog box, etc., select the rotation point 63, which is the point to be rotated with the mouse. Finally, enter the direction of movement and displacement in the dialog box and press the rotate button to instruct the rotation.

22 is a view showing an example of performing a precise analysis by the two-point rotation (displacement) method according to the present invention. Two-point rotation (displacement) method is to use two measuring points when setting the rotation axis. In other words, a straight line passing through two measurement points selected by the user is used as the rotation axis. First, two measurement points 64a and 64b to be the rotational origin and rotational axis point that form the rotational axis are selected using a mouse or the like. Next, the rotation point 65, which is a point to be rotated with a mouse or the like, is selected or input. Finally, enter the rotation direction and rotation displacement and press the rotation button to perform the rotation.

23 is a view showing an example of performing a precise analysis by a one-point rotation (angle) method according to the present invention, Figure 24 is a precision analysis by a two-point rotation (angle) method according to the present invention The figure shows an example. The 1-axis rotation (angle) and 2-point-axis rotation (angle) are the same except that they are rotated using an angle instead of displacement in the above-described precision analysis method, and thus the detailed method is omitted.

In the present invention, the movement can be performed in addition to the above rotation operation for precise analysis. In other words, the movement function is to move the measuring point in the direction of the global axis (x, y, z axis). There are one point movement and two point movement. 25 is a view showing an example of performing a precise analysis by a one-point moving method according to the present invention, Figure 26 is a view showing an example of performing a precision analysis by a two-point moving method according to the present invention.

For one-point movement, after selecting the reference point 68 to be moved, input the target coordinates to which the reference point is to be moved, and the entire measurement point is moved accordingly. It is a method of directly inputting the target coordinate to be moved instead of giving a displacement to move the measuring point. Two-point movement is used to select two measurement points 69a and 69b and to move each point to a different displacement value in different directions. This method is particularly useful when the end points of the block 21 are twisted in different directions. First, two measurement points 69a and 69b are selected with a mouse and the displacement is input after the two measurement points are moved.

In the completion check sheet preparing step ST9, a completion check sheet including deviation analysis data between control points and measurement points completed by performing each previous step is output. Completion check sheet not only design coordinates but also deviation values are displayed in parallel, Figure 27 is a view showing an example of the completion check sheet according to the present invention. Therefore, the operator can proceed with the assembly work of the hull by referring to the completion check sheet for the hull block that is primarily processed by performing a reworking operation to correct the dimensions of the hull block by the deviation indicated therein.

The present invention relates to a quality control method for hull blocks such as ships or offshore structures, which performs quality control more accurately than before, and has a general purpose that does not require highly skilled personnel, and the time required for quality control by objectifying and standardizing work. It is expected to be widely applied in domestic and overseas shipbuilding industry as it has a merit that it can drastically reduce productivity.

1 is a schematic diagram of a ship quality control method according to the prior art.

2 is a view showing an example of a check sheet manually generated and displayed on the two-dimensional design drawing of the hull block according to the prior art.

3 is a view showing an example of a completed check sheet manually generated and displayed the measurement point coordinates and deviation in the two-dimensional design of the hull block according to the prior art.

Figure 4 is a schematic diagram of the ship quality control method in the present invention.

Figure 5 is a process chart showing each step of the hull block quality control method according to the present invention in the working order.

6 is a view showing an example of creating a management point using the automatic snap function in accordance with the present invention.

7 is a view showing an example of creating a control point using the plane-line cross-calculation according to the present invention.

8 is a view showing an example of creating a management point using the curve length in accordance with the present invention.

9 is a view showing an example of generating a management point through the manual input of the management point coordinates in accordance with the present invention.

10 is a view showing an example of moving the hull block in accordance with the present invention.

11A-11D show different examples of rotating hull blocks in accordance with the present invention.

12 shows an example of a method for setting levels of design blocks.

13 is a view showing an example of a quality control sheet (quality inspection sheet) of the block.

14 is a view illustrating an example of generating a measurement point by a user directly inputting the measurement point coordinates to the quality control program rather than the measuring method using the above-described light wave measuring instrument.

15 illustrates an example of alignment using two reference points in accordance with the present invention.

16 illustrates an example of alignment using three reference points in accordance with the present invention.

17 illustrates a method of connecting control points-measuring points on a location basis in accordance with the present invention.

18 is a view showing a method for connecting a control point-measurement point based on a point name according to the present invention.

19 illustrates a method for manually connecting control point-measuring points in accordance with the present invention.

20 shows a deviation vector 51 for performing a precision analysis in accordance with the present invention.

21 is a view showing an example of performing a precise analysis by a one-point rotation (displacement) method in accordance with the present invention.

22 is a view showing an example of performing a precise analysis by a two-point rotation (displacement) method in accordance with the present invention.

23 is a view showing an example of performing a precise analysis in a one-point rotation (angle) method in accordance with the present invention.

24 is a view showing an example of performing a precise analysis by the two-point rotation (angle) method in accordance with the present invention.

25 is a view showing an example of performing a precise analysis in a one-point moving method according to the present invention.

26 is a view showing an example of performing a precise analysis in the two-point movement method according to the present invention.

27 is a view showing an example of a completion check sheet according to the present invention.

Claims (12)

delete delete delete delete delete delete delete delete (a) generating a plurality of control points in the three-dimensional design of the hull block; (b) generating a check sheet including coordinate information of each of the generated management points; (c) acquiring measurement point information measured using an optical wave measurer for the primary manufactured hull block; (d) aligning the control point and the measurement point with each other according to a predetermined criterion; (e) A computer-readable recording medium incorporating a quality control program of a hull block comprising the step of interconnecting a control point and a measurement point for analyzing the deviation between the control point and the measurement point that have been aligned. The method of claim 9, Between steps (a) and (b) A computer-readable recording medium incorporating a quality control program of the hull block further comprises the step of moving, rotating and setting the level of the hull block designed to match the position and orientation of the site assembly criteria. The method of claim 9, After the step (e), a precision analysis step for precisely analyzing the degree of deformation of the hull block by rotating or moving the hull block or the measurement point further includes a quality control program embedded in the hull block can be read. Recording media. The method of claim 11, And a step of generating a complete check sheet including the design coordinates and the deviation value of the control point after the precision analysis step.

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