Method for drawing letters on ship and ship
By sorting out the list in the segmented stage, classifying and decomposing the letters, and using polyester paper to draw the hull plate, the problem of positioning the ultra-large letters for large ships was solved, realizing an efficient and convenient drawing method and reducing construction risks and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-03-13
AI Technical Summary
In existing technologies, when large ships are painted with extra-large letters after the sections are completed, it is difficult to locate the position, and bad weather affects construction and delivery cycle.
During the segmentation stage, the segmentation list is confirmed and sorted out, the letters are classified and broken down, the letter lines are replicated 1:1 using polyester paper and drawn on the outer board. Rotation is allowed but flipping and symmetry are prohibited. The letters are positioned using the baseline and then checked a second time.
It enables the accurate, effective, efficient, convenient, and cost-effective drawing of extra-large letters, reducing construction risks and delivery cycles.
Smart Images
Figure CN121650831A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of shipbuilding technology, and specifically relates to a method for drawing letters on a ship and the ship itself. Background Technology
[0002] Currently, large ships often have multiple extra-large letters (10,000㎡+) on their side sections. These letters usually represent the country and company to which the ship belongs, that is, the ship's registration authority. For example, the subject of this study is CMA CGM, a multinational container shipping company headquartered in Marseille, France.
[0003] Oversized letters on large ships are often drawn after the sections are completed, then assembled into a final formwork, and finally connected to the main structure, with compartments connected. While drawing oversized letters at this stage seems advantageous, it actually does more harm than good. Analysis of existing processes shows that the advantage lies in directly overlaying polyester paper onto the outer plating after the ship is basically formed, as... Figure 10 As shown, this can prevent problems during the docking process of large letters drawn in stages; the disadvantage is that the position of large letters on the outer plate is not easy to locate, and secondly, a hoist must be used during the operation. If it is affected by bad weather, the construction will be impossible, affecting the delivery cycle.
[0004] Therefore, how to provide a method for drawing letters on ships and how to design ships themselves have become technical problems that urgently need to be solved in this field. Summary of the Invention
[0005] The purpose of this invention is to provide a method for drawing letters on a ship and a ship thereof.
[0006] According to a first aspect of the present invention, a method for drawing letters on a ship is provided, comprising: Step S1: Confirm and organize the list of letters to be drawn in the segmentation stage, and retrieve the letter layout diagram in the segmentation list; Step S2: Classify the letters to be drawn according to the letters in the letter arrangement diagram; Step S3: Decompose and process the categorized letters, breaking them down into multiple letter lines to obtain a processed letter drawing diagram; Step S4: Draw a schematic diagram based on the letters, and then copy the letter lines in the schematic diagram onto polyester paper at a 1:1 scale. Step S5: Draw the letter lines on the polyester paper onto the outer plating of the ship according to the letter layout diagram.
[0007] Optionally, in step S1, confirming and sorting out the list of segments for which letters need to be drawn in the segmentation stage specifically includes confirming the segment number and the corresponding letter and letter position.
[0008] Optionally, in step S2, the letters to be drawn are classified, specifically by grouping letters without curvature into one group and letters with curvature into another group.
[0009] Optionally, in step S3, Step S31: Confirm that the letters on the segmented phase letter layout diagram are in the same position as the letters on the overall layout diagram; Step 32: Select the baseline for the letter on the general layout drawing; Step 33: Decompose the letters by breaking down the inner and outer contours of the letters into multiple lines and marking the breaks. Step 34: Draw the relative positions, coordinates, and dimensions of multiple letters based on the baseline to obtain the processed letter drawing diagram.
[0010] Optionally, in step S31, the method for confirming that the letters on the component drawings of the segmented stage are consistent with the letters on the general arrangement drawing is to compare the data from the ship's height to the bow and stern positions.
[0011] Optionally, in step S4, the letter lines are allowed to rotate, but are prohibited from being flipped or symmetrical.
[0012] Optionally, in step S4, each broken letter line is pre-drawn on polyester paper after being rotated, leaving an extra 100mm extension line at the break point.
[0013] Optionally, the baseline for the letter arrangement diagram on the starboard side of all vessels is on the port side, and the baseline for the letter arrangement diagram on the port side of all vessels is on the starboard side.
[0014] Optionally, the method further includes step S6: verifying the letter lines drawn on the outer plating of the ship based on the letter data of the general arrangement drawing and the letter arrangement drawing.
[0015] According to a second aspect of the present invention, a ship is provided, wherein letters on the ship are drawn according to the method for drawing letters on the ship according to any one of the first aspects of the present invention.
[0016] As can be seen from the above solutions, the embodiments of the present invention provide a method for drawing letters on a ship and a ship, which have the following beneficial effects: This invention mainly addresses the method for drawing extra-large letters on large ships in the segmented stage, forming a new method for drawing extra-large letters that is more accurate, effective, efficient, convenient, and economical compared to the original process. Attached Figure Description
[0017] Figure 1 This is a flowchart illustrating a method for drawing letters on a ship according to an embodiment. Figure 2 This is a diagram illustrating the segmented list; Figure 3 A schematic diagram of the letter "C" in the letter arrangement diagram; Figure 4 This is a schematic diagram of the letter "C" on the outfitting drawing; Figure 5 This is a schematic diagram showing the dimensions of the letter "C" on the general layout drawing; Figure 6 This is a schematic diagram of the starboard baseline. Figure 7 This is a schematic diagram of the port side baseline. Figure 8 Draw diagrams for the letters; Figure 9 A schematic diagram of letter lines drawn on polyester paper; Figure 10 This is the data representation of the existing grid line drawing method in CAD. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0019] Based on the background analysis and comprehensive consideration, the large letter drawing task will be moved to the segmentation stage. Drawing large letters in the segmentation stage also has its advantages and disadvantages. Based on the analysis of the existing process, the advantage is that, compared to the overall assembly stage, the segmentation stage has large joints and seams that serve as baselines, making positioning easier.
[0020] like Figure 1 As shown, according to a first aspect of the present invention, a method for drawing letters on a ship is provided, particularly a method for drawing extra-large letters on large ships in a segmented stage, the method comprising: Step S1: Confirm and organize the list of segments for which letters need to be drawn in the segmentation stage, such as... Figure 2 As shown, retrieve the letter arrangement diagram from the segment list; In step S1, confirming and organizing the list of segments for drawing letters required in the segmentation stage specifically includes confirming the segment number and the corresponding letter and its position.
[0021] Step S2: According to the letters in the letter layout diagram, classify the letters to be drawn; for example, a series of letters without curvature such as A, E, F, H, L, etc. only need to provide data such as ship height and bow and stern positions for construction; while a series of letters with curvature such as B, C, D, G, etc. need to be processed. In step S2, the letters to be drawn are classified. Specifically, the letters without curvature are grouped together, and the letters with curvature are grouped together.
[0022] Step S3: Decompose and process the categorized letters, breaking them down into multiple letter lines to obtain a processed letter drawing diagram, such as... Figure 8 As shown; like Figure 3 and Figure 4 As shown, taking CS22S as an example, the letter that needs to be written is C.
[0023] Step S31: Confirm that the letters on the segmented phase letter layout diagram are in the same position as the letters on the overall layout diagram; In step S31, the method for confirming that the letters on the component drawings of the segmented stage are consistent with the letters on the general arrangement drawing is to compare the data from the ship's height to the bow and stern positions. Using the design outfitting drawings as a reference, the method for confirming that the large letters on the drawings are consistent with the general arrangement drawing is to compare the data from the ship's height and bow and stern positions. Figure 4 and Figure 5 As shown.
[0024] Step 32: Select the baseline for the letters on the general arrangement drawing; draw the large joints of the sections near the oversized letters on the general arrangement drawing, and confirm the baseline by referring to the outfitting drawings. For all letters on the starboard side of the ship, the baseline for the arrangement drawing is on the left side. Figure 6 As shown, the baseline for the letter arrangement diagram on the port side of all ships is on the right. Figure 7 As shown.
[0025] Step 33: Decompose the letters by breaking down their inner and outer contours into multiple lines and marking the breaks. For the selected large letters, decompose their inner and outer contours into multiple lines such as A1, A2, A3, etc., and mark the breaks (here marked with an "×"). Figure 8 As shown.
[0026] Step 34: Draw the relative positions, coordinates, and dimensions of multiple letters based on the baseline to obtain a processed letter drawing diagram; the letter lines are allowed to rotate, but flipping and symmetry are prohibited; give the relative position and coordinates of the marked × based on the marked diagram for easy verification.
[0027] Step S4: Draw a schematic diagram based on the letters, and then replicate the letter lines from the schematic diagram 1:1 onto polyester paper, such as... Figure 9 As shown, the letter lines are allowed to rotate, but flipping and symmetry are prohibited. The processed letter lines are copied 1:1 onto polyester paper. Based on step ③, each broken line segment is pre-drawn by rotation, leaving an extra 100mm extension line at the break point to facilitate the connection of the two ends of the lines during subsequent construction. The lines are allowed to rotate, but flipping and symmetry are prohibited because the letters on the port and starboard sides are asymmetrical.
[0028] In step S4, each broken letter line is pre-drawn on polyester paper after being rotated, leaving an extra 100mm extension line at the break point.
[0029] Step S5: Draw the letter lines on the polyester paper onto the outer plating of the ship according to the letter layout diagram.
[0030] Draw the lines on the polyester paper onto the segmented outer plate according to the arrangement diagram of the letter segments. There are no special requirements for on-site construction; simply follow the process flow. Draw the segment break point × according to the segment port, i.e., the baseline. Draw the line with a line shape between the two break points according to the corresponding lines on the polyester paper and the arrangement diagram. Do not weld the 500mm section break; fill it in during subsequent stages of assembly.
[0031] Step S6: Inspect the letter lines drawn on the ship's outer plating according to the letter data in the general arrangement drawing and letter arrangement drawing. Check the accuracy of the lines based on the data in the general arrangement drawing and the section drawing. After checking the data from multiple sources, mainly based on the outfitting drawings, check the accuracy of the lines drawn at the break points. This step also needs to be confirmed before the previous step is constructed. This is a secondary inspection.
[0032] The method of this application involves identifying and compiling a list of segments for drawing extra-large letters in the segmentation stage, including segment numbers and their corresponding letters and positions. The letters to be drawn are then categorized sequentially, and the categorized letters are decomposed and processed. A layout diagram of the letter line segments is then created. The processed letter lines are then copied 1:1 onto polyester paper. Based on the layout diagram of the letter line segments, the lines on the polyester paper are drawn onto the segmented outer board. The accuracy of the data is verified against the overall layout diagram and the segment diagram. This method is a correct, effective, efficient, convenient, and economical drawing method. Extra-large letters drawn using this method exhibit advantages such as accuracy, effectiveness, efficiency, and convenience compared to the general grid line drawing method. Compared to the 1:1 drawing method requiring equal-area polyester paper, it also exhibits advantages such as economic efficiency.
[0033] According to a second aspect of the present invention, a ship is provided, and letters on the ship are drawn according to the method for drawing letters on the ship according to any one of the first aspects of the present invention.
[0034] In summary, the method proposed in this invention is particularly applicable to the drawing of extra-large letters on large ships in the segmented stage. It mainly addresses and optimizes the shortcomings of existing technologies, forming a new method for drawing extra-large letters that is more accurate, effective, efficient, convenient, and economical compared to the original process.
[0035] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A method for drawing letters on a ship, characterized in that, include: Step S1: Confirm and organize the list of letters to be drawn in the segmentation stage, and retrieve the letter layout diagram in the segmentation list; Step S2: Classify the letters to be drawn according to the letters in the letter arrangement diagram; Step S3: Decompose and process the categorized letters, breaking them down into multiple letter lines to obtain a processed letter drawing diagram; Step S4: Draw a schematic diagram based on the letters, and then copy the letter lines in the schematic diagram onto polyester paper at a 1:1 scale. Step S5: Draw the letter lines on the polyester paper onto the outer plating of the ship according to the letter layout diagram.
2. The method for drawing letters on a ship according to claim 1, characterized in that, In step S1, confirming and organizing the list of segments for drawing letters required in the segmentation stage specifically includes confirming the segment number and the corresponding letter and its position.
3. The method for drawing letters on a ship according to claim 2, characterized in that, In step S2, the letters to be drawn are classified. Specifically, the letters without curvature are grouped together, and the letters with curvature are grouped together.
4. The method for drawing letters on a ship according to claim 3, characterized in that, In step S3, Step S31: Confirm that the letters on the segmented phase letter layout diagram are in the same position as the letters on the overall layout diagram; Step 32: Select the baseline for the letter on the general layout drawing; Step 33: Decompose the letters by breaking down the inner and outer contours of the letters into multiple lines and marking the breaks. Step 34: Draw the relative positions, coordinates, and dimensions of multiple letters based on the baseline to obtain the processed letter drawing diagram.
5. The method for drawing letters on a ship according to claim 4, characterized in that, In step S31, the method for confirming that the letters on the component drawings of the segment stage are consistent with the letters on the general arrangement drawing is to compare the data from the ship height to the bow and stern positions.
6. The method for drawing letters on a ship according to claim 5, characterized in that, In step S4, the letter lines are allowed to rotate, but are prohibited from being flipped or symmetrical.
7. The method for drawing letters on a ship according to claim 6, characterized in that, In step S4, each broken letter line is pre-drawn on polyester paper after being rotated, leaving an extra 100mm extension line at the break point.
8. The method for drawing letters on a ship according to claim 7, characterized in that, For all vessels, the baseline for the letter arrangement diagram on the starboard side is on the port side, and for all vessels, the baseline for the letter arrangement diagram on the port side is on the starboard side.
9. The method for drawing letters on a ship according to claim 1, characterized in that, The method also includes Step S6: Inspect the letter lines drawn on the ship's outer plating based on the letter data in the general arrangement drawing and letter arrangement drawing.
10. A ship, characterized in that, The method for drawing letters on a ship according to any one of claims 1-9 is used to draw letters on a ship.