A model-based method for quickly drawing cable guide diagrams for ship cabins

Abstract

The present invention relates to the technical field of digital ship design, and specifically to a model-based method for rapid drawing of ship cabin cable guide diagrams. A model-based method for rapid drawing of ship cabin cable guide diagrams is proposed, which uses the parallel design concept, combines the current digital design status and business rules in the field of ships, and realizes the drawing design based on the same data source; by building virtual equipment and support jump models, the problem of unknown inability to lay cables for other cabin equipment connected by through-cabin cables and jump updates of different view guide diagrams is solved; by integrating cabin cable guide three-dimensional design and two-dimensional rapid drawing, a three-dimensional and two-dimensional synchronous mapping relationship is constructed, and the rapid drawing of cabin guide diagrams is realized, and the cable length and weight are automatically calculated, which relieves designers from the heavy drawing work and improves the efficiency and quality of drawing.

Description

Technical Field

[0001] The invention relates to the technical field of digital ship design, and in particular to a method for quickly drawing a ship cabin cable guide diagram based on a model. Background Art

[0002] Ship cables are the link for power supply and communication of electrical equipment inside and outside the ship's cabins, and the main part is generally reflected in the cabin cable guide diagram. On the one hand, the ship cabin cable guide diagram reflects the designers' understanding and design ideas of the comprehensive layout of the ship's cabin electrical equipment and the distribution of cable channels. On the other hand, as a construction technical drawing, it describes the detailed information and direction of the cables passing through the cable channel, providing a guiding basis for the installation personnel. In addition, the cabin cable book supporting the cabin guide diagram contains information such as cable model and cable length, which is an important reference for the factory to prepare production materials. Therefore, the drawing quality and speed of the ship cabin cable guide diagram and cable book play an important role in improving the overall design and assembly construction quality of the ship and reducing the development cycle.

[0003] The traditional method of drawing ship cabin cable guide diagrams is mainly through manual CAD drawing. Designers need to first count the cable information of the cabin electrical equipment wiring diagram, determine the logical wiring relationship, and then refer to the electrical equipment installation diagram, electrical foot installation diagram and other materials to determine the electrical equipment layout cabin information and cable channel distribution information, and then manually draw the guide diagrams in different views in the CAD drawings. Finally, the cable length, weight, and center of gravity are estimated according to the cable channel through which the cable passes, and a matching cable book is formed.

[0004] Traditional cabin navigation drawings have the following problems: First, the drawing process design cycle is long, the efficiency is low, and the workload is extremely high; second, the estimation of cable length, weight and center of gravity is rather cumbersome, and manual estimation errors are large; third, collaboration is difficult, and with traditional drawing methods, a cabin navigation drawing can usually only be drawn by one person; fourth, traditional drawing methods have poor adaptability when encountering changes in technical status, and cannot quickly iterate and update the changes. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to provide a model-based method for quickly drawing a ship cabin cable guide diagram, which uses parallel design ideas, combines the current digital design status and business rules in the field of ships, integrates cabin cable guide three-dimensional design and two-dimensional rapid drawing based on the same data source, constructs a synchronous mapping relationship, realizes rapid drawing of cabin guide drawings, automatically calculates cable length and weight, relieves designers from heavy drawing work, and improves drawing efficiency and quality.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: to provide a method for quickly drawing a ship cabin cable guide diagram based on a model, which specifically includes the following steps:

[0007] S1, construct a basic 3D model in the 3D design platform;

[0008] S2, sorting out the wiring information of the cabin electrical equipment, forming a cable wiring relationship table according to a prescribed format, and importing the cable wiring relationship table into the three-dimensional design platform;

[0009] S3, identify the equipment location and the channel to which the cable belongs;

[0010] S4, check cabin cables, cable channels and equipment information;

[0011] S5, creating a virtual device and generating a characteristic cable;

[0012] S6, according to the design requirements, automatically or manually laying the characteristic cables to the corresponding cable channels;

[0013] S7, creating a view area, where the view area covers all equipment and cable channel models in the current area;

[0014] S8, selecting a target view, performing equipment projection and cable channel projection, and generating a view conversion interruption point;

[0015] S9, identifying the branch points and interruption points of the cable channel, automatically marking the cable information of the cables passing through the branch points and interruption points in a specified format, and optimizing the cable layout to form a complete cable route map;

[0016] S10, generating a cable catalog, wherein the cable catalog contains information on the actual length of the cable, the location of the cable, the relative distance between the cable ribs, the total weight of the cable, and the center of gravity of the cable.

[0017] Furthermore, in step S1, constructing the basic three-dimensional model specifically includes:

[0018] S1.1, according to the overall technical requirements of the product, carry out basic 3D modeling of the structure, electrical equipment, pipelines, and cable channels, and make preliminary arrangements;

[0019] S1.2, perform multiple rounds of comprehensive cabin balancing to solidify the technical status of the basic three-dimensional model;

[0020] S1.3, classifying and modeling commonly used marine cables in the three-dimensional design platform;

[0021] S1.4, creating a two-dimensional symbol library of electrical equipment corresponding to the basic three-dimensional model according to the design specifications.

[0022] Furthermore, in step S3, the identifying device location and the channel to which the cable belongs specifically includes:

[0023] S3.1, identifying the cabin to which the equipment belongs, specifically calculating the center of gravity of the electrical equipment in the basic three-dimensional model, identifying the cabin to which the equipment belongs in combination with the cabin range, and synchronizing it to the cable wiring relationship table;

[0024] S3.2, identifying the cable channel to which the cable belongs, specifically, determining the cable channel to which the cable belongs according to the cabin to which the equipment corresponding to the cable belongs.

[0025] Furthermore, in step S4, the checking of cabin cables, cable channels and equipment information specifically includes:

[0026] S4.1, check the completeness of the basic three-dimensional model by comparing the equipment in the cable connection relationship table, record the missing equipment, and output the missing equipment information table;

[0027] S4.2, calculating the distance between the cable channel and the device, and when the distance exceeds a preset value, outputting a cable channel and device mismatch information table;

[0028] S4.3, adjusting the cable connection relationship table according to the missing device information table and the cable channel and device mismatch information table.

[0029] Further, in step S5, the creation of the virtual device specifically includes: for the cabin penetration cable, creating a virtual device at a specific position in the cabin to replace the external electrical device connected to the cabin penetration cable, and using the virtual device as a carrier for generating the characteristic cable;

[0030] The generating characteristic cable specifically comprises: using the cable code in the cable wiring relationship table as the cable unique identification code, automatically identifying and acquiring the corresponding cable parameters in the physical cable library through the cable code, and generating the characteristic cable based on the cable parameters.

[0031] Further, in step S8, the specific process of the device projection is: according to the orientation of the device in the target view, the device in the target view is projected in situ, and the device projection is replaced with a corresponding two-dimensional device symbol;

[0032] The specific process of the cable channel projection is: projecting the cable channel in the target view in situ, and automatically processing the corner fillets and the diagonal marks of the cable turning positions according to the drawing requirements.

[0033] Furthermore, in step S8, the interruption point is used for jump connection between different views. The interruption point is specifically a support jump model created in the view, which is used to record the cable information passing through this point.

[0034] Furthermore, in step S9, the automatic labeling of cable information specifically includes:

[0035] S9.1, predefine a two-dimensional electrical signal annotation symbol corresponding to the cable, wherein the two-dimensional electrical signal annotation symbol includes electrical signal attribute information;

[0036] S9.2, associating the electrical vulnerability attribute information with the corresponding electrical vulnerability model in the basic three-dimensional model, and storing the information in the electrical vulnerability model;

[0037] S9.3, according to the selected branch point and interruption point, obtain corresponding electrical fault attribute information and generate an information list;

[0038] S9.4, traverse the information list, extract target information, generate an electrical fault list according to the output format, and project and generate an electrical fault installation drawing.

[0039] Furthermore, in step S10, the actual length of the cable is calculated according to the following formula:

[0040] L=K×(L1+L2+L3)

[0041] Where: L represents the actual length of the cable, L1 represents the length of the cable laid in the cable channel, L2 and L3 represent the lead length and core length of the cable connecting the electrical equipment respectively; K represents the estimation coefficient.

[0042] Compared with the prior art, the present invention has the following main advantages:

[0043] 1. A model-based method for rapid drawing of ship cabin cable guide diagrams is proposed. The parallel design concept is used, combined with the current digital design status and business rules in the ship field, to achieve drawing design based on the same data source;

[0044] 2. Build virtual equipment and support jump models to solve the problem that other cabin equipment connected by through-cabin cables cannot be laid due to unknown cables and jump updates of different view guide diagrams;

[0045] 3. Integrate the 3D design and 2D rapid drawing of cabin cable guide, build a synchronous mapping relationship between 3D and 2D, realize the rapid drawing of cabin guide diagram, automatically calculate the cable length and weight, free the designers from heavy drawing work, and improve the drawing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a flow chart of a method for quickly drawing a cabin cable guide diagram according to the present invention;

[0047] Figure 2 A schematic diagram of a physical cable library and a two-dimensional symbol library of electrical equipment according to an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram showing the cable connection relationship in an embodiment of the present invention;

[0049] Figure 4 A schematic diagram supplementing the information of the cable connection relationship table according to an embodiment of the present invention;

[0050] Figure 5 This is a schematic diagram of cable and equipment information verification according to an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of cable laying according to an embodiment of the present invention;

[0052] Figure 7 A schematic diagram of a drawing view area according to an embodiment of the present invention;

[0053] Figure 8 This is a schematic diagram of the projection transformation of the model according to an embodiment of the present invention;

[0054] Fig. 9 A schematic diagram of automatic cable information labeling according to an embodiment of the present invention;

[0055] Fig.10 Schematic diagram of a cable recorder according to an embodiment of the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0057] The present invention provides a method for quickly drawing a ship cabin cable guide diagram based on a model, and its main technical features are as follows:

[0058] 1. Solve the problem of characterizing other cabin equipment in the current ship cabin cable guide diagram. The specific process is as follows:

[0059] For the cabin-penetrating cable, there must be one end of the device that is not in the current cabin. To indicate the connection information of this part of the cabin-penetrating cable, the device data in the non-current cabin is replaced by a virtual device. In addition, for the convenience of management, a virtual device library is created with standardized naming (composed of 4 fields) to facilitate identification of the location of the device and whether the cable passes through the main trunk or auxiliary trunk. Generally, the virtual device is placed at the intersection of the main trunk or auxiliary trunk with the bulkhead according to the cabin-penetrating requirements.

[0060] 2. Solve the problem of jumping judgment of guide graphs drawn in different views when there is too much drawing information. The specific process is as follows:

[0061] Jumps between different view guides are connected through breakpoints; a support jump model is created in each view as a break object to record the cable information passing through it. Breakpoints contain multiple states. "Latest" means that the breakpoint information is consistent with the currently associated breakpoint, "To be updated" means that the breakpoint information is inconsistent with the currently associated breakpoint, "Disconnected" means that the breakpoint is not associated with other breakpoints, and "Conflict" means that the breakpoint is associated with multiple other breakpoints. Different views are organically connected in series to form a whole. When the guide map is projected and transformed, the breakpoint is marked with a circle. Each time a view is drawn, the breakpoint is updated to match other views associated with this breakpoint.

[0062] 3. According to the designer's habits, build customized marking rules to achieve fast and automatic marking of cable information. The specific process is as follows:

[0063] By pre-defining the electrical hazard 2D annotation symbol in the model library, this symbol contains the necessary information such as the electrical hazard number and the opening size, and is associated with the corresponding electrical hazard model in the 3D model, and stored in the model attributes in the agreed format. When outputting the drawing, the selected area nodes are read in batches as needed, all electrical hazard attribute information is obtained and a list is generated. By traversing this list, the target information can be extracted, and the electrical hazard list is generated according to the output format, and the electrical hazard installation drawing is generated by projection.

[0064] A method for quickly drawing a ship cabin cable guide diagram based on a model implemented in the present invention is as follows: Figure 1 As shown, the specific steps include:

[0065] The first step is to build a basic 3D model

[0066] a. Basic modeling of 3D models:

[0067] According to the overall technical requirements of the product, basic three-dimensional models such as structure, electrical equipment, pipelines, cable channels, etc. are modeled and preliminarily arranged.

[0068] b.Comprehensive balance of cabin

[0069] Carry out multiple rounds of comprehensive cabin balancing according to the technical status to ensure that the technical status of the basic model is solidified before the drawing work begins.

[0070] c. Physical cable library creation

[0071] Commonly used marine cables are classified and modeled in a three-dimensional platform for subsequent feature cable generation.

[0072] d. Creation of 2D symbol library for electrical equipment

[0073] According to design specifications or usage habits, create a two-dimensional symbol library of electrical equipment corresponding to the three-dimensional model for subsequent two-dimensional drawing.

[0074] Step 2: Logical Data Preparation

[0075] Arrange the wiring information of cabin electrical equipment, form a cable wiring relationship table according to the specified format, and then import the cable wiring relationship table into the 3D design platform as the basis for 3D cable laying.

[0076] Step 3: Identify the equipment location and the channel to which the cable belongs

[0077] a. Identification of the compartment to which the equipment belongs

[0078] Calculate the center of gravity of the electrical equipment in the basic 3D model, automatically identify the cabin to which the equipment belongs based on the cabin range, and synchronize it with the cable wiring relationship table imported in the second step.

[0079] b. Identification of the cable channel to which the cable belongs

[0080] The cables between electrical equipment include cabin cables and through-cabin cables. The cable channel to which the equipment belongs is determined according to the cabin to which it belongs. The port and starboard judgment is based on the equipment location and the overall situation of the laid cables to automatically calculate the direction of the cable channel to which it belongs.

[0081] Step 4: Check cabin cables, channels and equipment information

[0082] Check the completeness of the basic 3D model against the equipment in the cable wiring relationship table, record the missing equipment, calculate the distance between the cable channel and the equipment, and output the cable channel and equipment mismatch information table when the distance exceeds a certain set value. The missing equipment and mismatched cable channels are adjusted and then re-included in the cable wiring relationship table.

[0083] Step 5: Create virtual equipment and generate characteristic cables

[0084] If it is a cabin cable, create a virtual device at a specific location in the cabin (main trunk or auxiliary trunk) to replace the electrical equipment outside the cabin, which is used to generate a carrier for the characteristic cable. The cable code in the cable wiring relationship table is used as the unique cable identification code. This code is used to automatically identify and obtain the cable-related parameters in the physical cable library to generate a characteristic cable for laying.

[0085] Step 6: Laying cables

[0086] According to the design requirements, the characteristic cables are laid to the appropriate cable channels automatically or manually.

[0087] Step 7: Create a view area

[0088] According to drawing needs, create different drawing view areas to cover all equipment and channels and other model features in the current area, which are used for drawing projection of different parts.

[0089] Step 8: Projection transformation

[0090] a.Device projection

[0091] After the target view is selected, the equipment in the current view is projected in situ according to different orientations (such as top view, bottom view, port view, starboard view and forward view, etc.), and then the projection of this equipment is replaced with the corresponding equipment symbol in the two-dimensional symbol library of electrical equipment. For equipment without corresponding symbols, the corresponding rectangle that is scaled proportionally with the maximum outer contour of the equipment is automatically replaced.

[0092] b. Cable channel projection

[0093] Project the cable channel in the above selected view space, and automatically process the bend fillets and cable turning position diagonal marks according to drawing requirements.

[0094] c. Breakpoint generation

[0095] Jumping to different view positions is achieved through interruption points. Interruption points are generated on the projected cable channel and represented by circles. The information of the passing cables is also recorded.

[0096] Step 9: Automatically label cable information

[0097] Automatically identify branch points and interruption points of cable channels, mark cable information in a specified format for cables passing through branch points, and automatically optimize the layout to form a complete cable route map.

[0098] Step 10: Cable catalog generation

[0099] The actual length of the cable is calculated according to the following formula:

[0100] L=K×(L1+L2+L3)

[0101] Where: L represents the actual length of the cable;

[0102] L1: indicates the length of the cable laid in the cable channel;

[0103] L2, L3: Indicates the lead length and core length of the electrical equipment at both ends of the cable connection, usually "L1+L2"

[0104] Take 1m;

[0105] K: represents the estimation coefficient, generally ranging from 1.05 to 1.1.

[0106] According to the cable laying list, check the equipment position of the cabin cable connection equipment in the basic model, record its location, relative distance of ribs, total weight of cables, center of gravity and other information, generate and export the cable book in a certain format.

[0107] The specific implementation process is as follows:

[0108] Combine the following Figure 2 to Figure 10 , the present invention is further explained by taking a cabin navigation diagram of a certain compartment as an example. It should be pointed out that, according to the needs of implementation, the various steps described in this application can be split into more steps, and two or more steps or partial operations of the steps can be combined into new steps to achieve the purpose of the present invention, which should be included in the protection scope of the present invention.

[0109] The first step is to build a basic 3D model

[0110] According to the latest technical status, basic 3D models of structures, electrical equipment, pipelines, cable channels, etc. are modeled and cabin balance is performed; physical cable libraries and 2D symbol libraries of electrical equipment are simultaneously created as the 3D basis for subsequent drawings, such as Figure 2 shown.

[0111] Step 2: Logical Data Preparation

[0112] Arrange the wiring information of the cabin electrical equipment and compile the cable wiring relationship table according to the template as the logical data for cable laying, such as Figure 3 shown.

[0113] Step 3: Identify the equipment location and the channel to which the cable belongs

[0114] Calculate the center of gravity of all electrical equipment models in the cabin, compare the cabin coordinate range, and add the information such as the cabin to which the electrical equipment belongs and the equipment name to the second step cable connection relationship table. Get the location of the starting and ending equipment of the cable connection, determine the side of the ship to which the equipment belongs based on the coordinates of the center of gravity of the equipment, and then distinguish the location of the cable channel to which it belongs, such as Figure 4 shown.

[0115] Step 4: Check cabin cables, channels and equipment information

[0116] Check the missing of basic 3D model and generate a list of unmodeled equipment; check the distance between the equipment and the cable channel, and list the equipment near the equipment that is not modeled in the cable channel for designers to supplement and improve, such as Figure 5 shown.

[0117] Step 5: Create virtual equipment and generate characteristic cables

[0118] Figure 5 The code N1 device is not a cabin device, and has a signal connection with the cabin device N2, and the cable passes through the trunk, so a virtual device N1' is created at the junction of the trunk and the bulkhead. According to the cable code (such as JYJPJ85 / SC-1) in the cable wiring relationship table, the relevant physical properties of the cable with this code in the physical cable library are obtained to create a feature cable.

[0119] Step 6: Laying cables

[0120] Lay the characteristic cables to the appropriate cable channels automatically or manually, such as Figure 6 shown.

[0121] Step 7: Create a view area

[0122] According to the drawing needs, create a specific cabin drawing area view area in the cabin, such as Figure 7 shown.

[0123] Step 8: Projection transformation

[0124] Select the front view in the view area as the projection direction, project the electrical equipment, cable channels, and main structures in the current area, and replace them with the corresponding 2D symbols of the electrical equipment, such as Figure 8 shown.

[0125] Step 9: Automatically label cable information

[0126] The cables passing through the cable channel branches and interruption points in the view area are marked and the layout is automatically optimized, such as Fig. 9 shown.

[0127] Step 10: Cable catalog generation

[0128] The actual length of the cable is calculated according to the following formula:

[0129] L=K×(L1+L2+L3)

[0130] Where: L represents the actual length of the cable;

[0131] L1: indicates the length of the cable laid in the cable channel;

[0132] L2, L3: Indicates the lead length and core length of the electrical equipment at both ends of the cable connection, usually "L1+L2"

[0133] Take 1m;

[0134] K: represents the estimation coefficient, generally ranging from 1.05 to 1.1.

[0135] According to the above formula, the length of the cable laid in the cable channel is calculated. The lead length of the electrical equipment at both ends of the cable and the core length "L1+L2" are taken as 1m, and the estimation coefficient is taken as 1.05 to obtain the actual cable length. The total weight and center of gravity information of the cable in the model are extracted to generate a cable book, such as Fig.10 shown.

[0136] In summary, a method for quickly drawing a ship cabin cable guide diagram based on a model of the present invention is as follows:

[0137] 1. A model-based method for rapid drawing of ship cabin cable guide diagrams is proposed. The parallel design concept is used, combined with the current digital design status and business rules in the ship field, to achieve drawing design based on the same data source;

[0138] 2. Build virtual equipment and support jump models to solve the problem that other cabin equipment connected by through-cabin cables cannot be laid due to unknown cables and jump updates of different view guide diagrams;

[0139] 3. Integrate the 3D design and 2D rapid drawing of cabin cable guide, build a synchronous mapping relationship between 3D and 2D, realize the rapid drawing of cabin guide diagram, automatically calculate the cable length and weight, free the designers from heavy drawing work, and improve the drawing efficiency and quality.

[0140] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for quickly drawing a ship cabin cable guide diagram based on a model, characterized in that: First, a basic three-dimensional model is constructed in the three-dimensional design platform, and a cable wiring relationship table is formed according to the wiring information of the cabin electrical equipment; then, the cable wiring relationship table is adjusted and improved according to the cabin cables, cable channels and equipment information, and the cable wiring relationship table is imported into the three-dimensional design platform; the equipment location and the channel to which the cable belongs are identified, the cabin cables, cable channels and equipment information are checked, virtual equipment is created, and then the equipment data in the non-current cabin is replaced by the virtual equipment, characteristic cables are generated based on the cable code and cable parameters, and the characteristic cables are laid to the corresponding cable channels; Then, a view area is created and a target view is selected for device projection and cable channel projection, and a view conversion breakpoint is generated. The view area covers all devices and cable channel models in the current area. Then create a support jump model in each view as an interruption object to record the cable information passing through here. Jumps between different view-oriented diagrams are connected through interruption points. Finally, the branch points and break points of the cable channel are identified, and the cable information passing through the branch points and break points is automatically marked in the specified format to optimize the cable layout, form a complete cable route map, and calculate the actual length of the cable to generate a cable book, which contains the actual length of the cable, the location of the cable, the relative distance between the cable ribs, the total weight of the cable, and the cable center of gravity information.

2. According to the method for quickly drawing a model-based ship cabin cable guide diagram according to claim 1, it is characterized in that: The construction of the basic three-dimensional model specifically includes: S1.1, according to the overall technical requirements of the product, carry out basic 3D modeling of the structure, electrical equipment, pipelines, and cable channels, and make preliminary arrangements; S1.2, perform multiple rounds of comprehensive cabin balancing to solidify the technical status of the basic three-dimensional model; S1.3, classifying and modeling commonly used marine cables in the three-dimensional design platform; S1.4, creating a two-dimensional symbol library of electrical equipment corresponding to the basic three-dimensional model according to the design specifications.

3. According to the method for quickly drawing a model-based ship cabin cable guide diagram according to claim 1, it is characterized in that: The identification device location and the channel to which the cable belongs specifically include: S3.1, identifying the cabin to which the equipment belongs, specifically calculating the center of gravity of the electrical equipment in the basic three-dimensional model, identifying the cabin to which the equipment belongs in combination with the cabin range, and synchronizing it to the cable wiring relationship table; S3.2, identifying the cable channel to which the cable belongs, specifically, determining the cable channel to which the cable belongs according to the cabin to which the equipment corresponding to the cable belongs.

4. According to the model-based method for quickly drawing a ship cabin cable guide diagram, the method is characterized in that: The verification cabin cables, cable channels and equipment information specifically include: S4.1, check the completeness of the basic three-dimensional model by comparing the equipment in the cable connection relationship table, record the missing equipment, and output the missing equipment information table; S4.2, calculating the distance between the cable channel and the device, and when the distance exceeds a preset value, outputting a cable channel and device mismatch information table; S4.3, adjusting the cable connection relationship table according to the missing device information table and the cable channel and device mismatch information table.

5. According to the model-based method for quickly drawing a ship cabin cable guide diagram, the method is characterized in that: The creation of the virtual device specifically includes: for the cabin penetration cable, creating a virtual device at a specific position in the cabin to replace the external electrical device connected to the cabin penetration cable, and using the virtual device as a carrier for generating the characteristic cable; The generating characteristic cable specifically comprises: using the cable code in the cable wiring relationship table as the cable unique identification code, automatically identifying and acquiring the corresponding cable parameters in the physical cable library through the cable code, and generating the characteristic cable based on the cable parameters.

6. A method for quickly drawing a ship cabin cable guide diagram based on a model according to claim 1, characterized in that: The specific process of device projection is: according to the orientation of the device in the target view, the device in the target view is projected in situ, and the device projection is replaced with a corresponding two-dimensional device symbol; The specific process of the cable channel projection is: projecting the cable channel in the target view in situ, and automatically processing the corner fillets and the diagonal marks of the cable turning positions according to the drawing requirements.

7. The method for quickly drawing a model-based ship cabin cable guide diagram according to claim 1, characterized in that: The interruption point is used for jump connection between different views. The interruption point is specifically a support jump model created in the view, which is used to record the cable information passing through this point.

8. The method for quickly drawing a model-based ship cabin cable guide diagram according to claim 1, characterized in that: The automatic marking of cable information specifically includes: S9.1, predefine a two-dimensional electrical signal annotation symbol corresponding to the cable, wherein the two-dimensional electrical signal annotation symbol includes electrical signal attribute information; S9.2, associating the electrical vulnerability attribute information with the corresponding electrical vulnerability model in the basic three-dimensional model, and storing the information in the electrical vulnerability model; S9.3, according to the selected branch point and interruption point, obtain corresponding electrical fault attribute information and generate an information list; S9.4, traverse the information list, extract target information, generate an electrical fault list according to the output format, and project and generate an electrical fault installation drawing.

9. The method for quickly drawing a model-based ship cabin cable guide diagram according to claim 1, characterized in that: The actual length of the cable is calculated according to the following formula: L=K×(L1+L2+L3) Where: L represents the actual length of the cable, L1 represents the length of the cable laid in the cable channel, L2 and L3 represent the lead length and core length of the cable connecting the electrical equipment respectively; K represents the estimation coefficient.

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