Method and system for automatically drawing cable structure chart

Abstract

The invention relates to the technical field of cable structures, in particular to a method and system for automatically drawing a cable structure chart, and the method comprises the steps: inputting parameters of a cable needing to be drawn, calling a preset cable structure template library which comprises a plurality of standard cable types, matching the input cable model specification with a national standard or an enterprise standard, and drawing the cable structure chart. The cable model specification is matched with the cable structure and the cable production process, so that the information of the overall cable production structure and the cable is obtained, calculation is conducted through the cable structure in combination with the cable production process, data of the cable is calculated, drawing is conducted according to the cable drawing data, and finally a cable structure chart is drawn and output; according to the method, the cable structure chart is automatically drawn through the system, compared with manual drawing through other tools under the general condition, only second-level generation is needed, the drawing workload is greatly reduced, and meanwhile due to the fact that the system is combined with the process to conduct automatic calculation drawing, the cable structure chart is closer to the cross section of a produced cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable structures, and in particular to a method and system for automatically drawing a cable structure diagram. Background Art

[0002] Cable structure diagrams often appear in cable process documents, cable technical documents, cable brochures and other scenarios related to the cable industry. Cable structure diagrams are in great demand for cable production specifications, cable technical exchanges, cable marketing, etc.

[0003] Normally, drawing cable structure diagrams requires manual drawing using CAD and other drawing tools. However, due to the large number of cable specifications and models, the cable structure, thickness of each component, outer diameter, material and other data involved are different. Usually, manual drawing using tools will consume a lot of time. At the same time, there are also problems such as inaccurate materials, untrue thickness data, and lack of in-depth integration of processes.

[0004] In order to solve the above problems, the present invention proposes a method and system for automatically drawing a cable structure diagram. Summary of the Invention

[0005] In order to overcome the problems of manual drawing using tools under normal circumstances, which consumes a lot of time and also has the problems of inaccurate materials, untrue thickness data, and lack of in-depth integration of processes, the present invention proposes a method and system for automatically drawing cable structure diagrams.

[0006] The technical solution of the present invention is: a method for automatically drawing a cable structure diagram, comprising: Input the cable parameters to be drawn, including cable type, number of conductors, insulation layer material, and shielding layer structure; Call the preset cable structure template library, which contains a variety of standard cable types. Match the input cable model specifications with the national standard or enterprise standard. Only when the matching model is found can the system draw the cable structure diagram. Then match the cable model specifications with the cable structure to obtain the overall cable production structure. At the same time, match the cable model specifications with the cable production process to obtain the structure, material, number of cables, pitch and thickness information of each component of the cable. The cable structure is combined with the cable production process to calculate the thickness and outer diameter of each component, and the cable drawing data is drawn according to the cable drawing data to finally draw the cable structure diagram; The system will output the drawn cable structure diagram.

[0007] Preferably, the cable structure template library includes templates for a variety of standard cable types, each template containing conductor arrangement, insulation layer thickness and shielding layer layout information.

[0008] Preferably, the method automatically generates a two-dimensional cross-sectional view and a three-dimensional stereoscopic view of the cable based on a matching template, and marks key dimensions of the cable in the view.

[0009] Preferably, the method supports layered rendering, and can display the conductor layer, insulation layer, shielding layer or sheath layer separately, while supporting user-defined cable parameters and dynamically adjusting the generation of the structure diagram.

[0010] Preferably, the method provides a real-time editing function, allowing the user to manually adjust the arrangement of conductors, layer thickness or material properties, and supports dynamic simulation to simulate the structural changes of the cable under bending, stretching or high temperature environment.

[0011] Preferably, a system for automatically drawing a cable structure diagram adopts a method for automatically drawing a cable structure diagram according to claims 1-5, comprising: Data input module, used to input the model and specifications of the cable to be drawn; Model specification matching module is used to match the input cable model specifications with national standards or enterprise standards. Only the matched model system can draw the cable structure diagram; Cable structure analysis module, used to match cable model specifications with cable structure to obtain the overall cable production structure; The cable process analysis module is used to match cable model specifications with cable production processes to obtain information on the structure, material, number of cables, pitch, and thickness of each component of the cable; The cable drawing data calculation module calculates the thickness and outer diameter data of each component of the cable by combining the cable structure with the cable production process; The cable structure diagram drawing module draws the cable structure diagram based on the cable drawing data and finally draws the cable structure diagram; The cable structure diagram output module is used to output the drawn cable structure diagram to the display section and provide download at the same time.

[0012] Preferably, the data input module provides a graphical interface and an API interface, supporting manual input or importing parameters from Excel / CSV.

[0013] Preferably, the model specification matching module is connected to the cable structure template library, which is a cloud database and supports real-time update and expansion.

[0014] Preferably, the cable structure diagram drawing module supports two-dimensional and three-dimensional drawing modes, and can switch between different viewing angles to display the cable structure.

[0015] Preferably, the cable structure diagram output module also provides a cable structure diagram export function and supports multiple file formats.

[0016] Beneficial effects of the present invention: 1. This system automatically draws the cable structure diagram. Compared with manual drawing using other tools, it only takes seconds to generate, which greatly saves the drawing workload. At the same time, because the system automatically calculates and draws in combination with the process, the cable structure diagram is closer to the production cable cross-section.

[0017] 2. Cable structure diagrams are used in cable process documents, cable technical documents, cable brochures and other scenarios, saving labor costs in the drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the system workflow of the present invention; Figure 2 What is shown is a schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 The present invention provides an embodiment: a method for automatically drawing a cable structure diagram, comprising: Input the cable parameters to be drawn, including cable type, number of conductors, insulation layer material, and shielding layer structure; Call the preset cable structure template library, which contains a variety of standard cable types. Match the input cable model specifications with the national standard or enterprise standard. Only when the matching model is found can the system draw the cable structure diagram. Then match the cable model specifications with the cable structure to obtain the overall cable production structure. At the same time, match the cable model specifications with the cable production process to obtain information such as the structure, material, number of cables, pitch, thickness, etc. of each component of the cable. The cable structure is combined with the cable production process to calculate the thickness, outer diameter and other data of each component, and then the cable drawing data is drawn according to the cable drawing data to finally draw the cable structure diagram; The system will output the drawn cable structure diagram.

[0021] The cable structure template library includes templates of various standard cable types, and each template contains information on conductor arrangement, insulation layer thickness, and shielding layer layout.

[0022] The method automatically generates a two-dimensional cross-sectional view and a three-dimensional stereoscopic view of the cable based on a matching template, and marks key dimensions of the cable in the view.

[0023] The method supports layered rendering and can display the conductor layer, insulation layer, shielding layer or sheath layer separately. It also supports users to customize cable parameters and dynamically adjust the generation of structural diagrams.

[0024] The method provides real-time editing capabilities, allowing users to manually adjust conductor arrangement, layer thickness, or material properties, and supports dynamic simulation to simulate the structural changes of cables under bending, stretching, or high-temperature environments.

[0025] See also Figure 2 , a system for automatically drawing cable structure diagrams, comprising: Data input module, used to input the model and specifications of the cable to be drawn; Model specification matching module is used to match the input cable model specifications with national standards or enterprise standards. Only the matched model system can draw the cable structure diagram; Cable structure analysis module, used to match cable model specifications with cable structure to obtain the overall cable production structure; The cable process analysis module is used to match cable model specifications with cable production processes to obtain information such as the structure, material, number of cables, pitch, thickness, etc. of each cable component; The cable drawing data calculation module calculates the thickness, outer diameter and other data of each component of the cable by combining the cable structure with the cable production process; The cable structure diagram drawing module draws the cable structure diagram based on the cable drawing data and finally draws the cable structure diagram; The cable structure diagram output module is used to output the drawn cable structure diagram to the display section and provide download at the same time.

[0026] The data input module provides a graphical interface and API interface, and supports manual input or importing parameters from Excel / CSV.

[0027] The model specification matching module is connected to the cable structure template library, which is a cloud database and supports real-time update and expansion.

[0028] The cable structure diagram drawing module supports two-dimensional and three-dimensional drawing modes, and can switch between different viewing angles to display the cable structure.

[0029] The cable structure diagram output module also provides an export function for the cable structure diagram and supports multiple file formats.

[0030] Furthermore, the detailed workflow of this system is described as follows: S1, the user enters the cable parameters through the graphical interface or API interface. The cable parameters include: Conductor layer: number of conductors, such as 3 cores, 5 cores, cross-sectional area, such as 10mm², twisting method, such as round / sector; Insulation layer: material, such as XLPE / PVC, thickness, such as 1.5mm, color coding; Shielding layer: type, such as copper braid / aluminum foil, coverage, such as ≥90%; Sheath layer: material, such as PE / TPU, tensile strength, such as 10MPa.

[0031] When inputting parameters, batch import of Excel / CSV files is supported.

[0032] S2, matches the input cable model specifications with the national standard or enterprise standard. The cable structure diagram can be drawn only when the system matches. If it does not match, the drawing cannot be performed.

[0033] In step S3, the system accesses the cloud template library and matches the cable model specifications with the cable structure through the cable structure analysis module to obtain the overall cable production structure. The cable process analysis module matches the cable model specifications with the cable production process to obtain information such as the structure, material, number of cables, pitch, and thickness of each cable component. S4, after receiving information such as the conductor's single-filament diameter, number of strands, stranding method, conductor cross-sectional area, stranding pitch, extruder die expansion coefficient, shielding layer braiding angle, and number of braiding machine spindles, the system converts the user-entered imperial units, such as AWG, into metric units, such as mm².

[0034] For the calculation of the conductor layer, the outer diameter of the stranded conductor is calculated as follows: The outer diameter of the stranded conductor is calculated using the concentric stranding formula: =d×(1+2×N); d: single filament diameter, unit: mm; N: Number of twisted layers, for example, 7 conductors are 1 layer, 19 conductors are 2 layers.

[0035] To give an example, the outer diameter of 7 0.2mm copper wires after twisting together is 0.2×(1+2×√1)=0.6mm.

[0036] The conductor filling factor is checked as follows: Calculate the ratio of actual cross-sectional area to theoretical cross-sectional area: Fill Factor = ; If the filling is insufficient, the twist pitch will be automatically adjusted or the number of strands will be increased.

[0037] For the calculation of the insulation layer, the nominal thickness is determined as follows: Obtain the minimum thickness from the cable table. For example, the insulation thickness of a 1kV cable is 0.7mm.

[0038] Among them, the actual thickness correction is as follows: Considering the extrusion expansion effect: ; : Material expansion coefficient (PVC takes 1.05~1.10).

[0039] The outer diameter of the insulation is calculated as follows: ; For the calculation of the shielding layer, the selection of the metal shielding structure is as follows: Among them, for copper tape shielding, it is necessary to select the thickness and overlap rate, and the outer diameter = insulation outer diameter + 2×copper tape thickness.

[0040] For braided shielding, the coverage needs to be calculated: ; : Braiding angle, usually 30°~45°; : Shielding wire diameter, for example 0.12mm.

[0041] Among them, for the correction of the shield outer diameter, the copper tape shield needs to consider the increase in the thickness of the overlapping part, and the outer diameter of the braided shield = insulation outer diameter + 4×wire diameter.

[0042] For the calculation of the sheath layer, the minimum thickness is determined as follows: According to the standard, the cable is divided into sections according to its outer diameter: ; Among them, for the calculation of the outer diameter of the sheath: ; Finally, calculate the total outer diameter to complete the calculation.

[0043] S5, import the conductor layer, insulation layer, shielding layer, sheath layer and total outer diameter output by the cable drawing data calculation module, first establish a polar coordinate system with the cable center as the origin (0,0), draw the conductor layer, then draw the insulation layer based on the conductor outer diameter, and then draw the shielding layer, and finally generate the outermost closed contour as the sheath layer.

[0044] The 2D section is stretched along the Z axis and detailed features are added to generate a 3D model.

[0045] S6, finally the cable structure diagram output module outputs the drawn cable structure diagram.

[0046] Through the above steps, this system automatically draws the cable structure diagram. Compared with manual drawing using other tools under normal circumstances, it only takes seconds to generate, which greatly saves the drawing workload. At the same time, because the system automatically calculates and draws in combination with the process, the cable structure diagram is closer to the production cable cross-section, in order to solve the problem that due to the large number of cable specifications and models, the cable structure involved, the thickness of each component, outer diameter, material and other data are different. Usually, manual drawing using tools will consume a lot of time, and there are also problems such as inaccurate materials, untrue thickness data, and lack of in-depth integration with the process.

Claims

1. A method for automatically drawing a cable structure diagram, characterized in that: Includes: Input the cable parameters to be drawn, including cable type, number of conductors, insulation layer material, and shielding layer structure; Call the preset cable structure template library, which contains a variety of standard cable types. Match the input cable model specifications with the national standard or enterprise standard. Only when the matching model is found can the system draw the cable structure diagram. Then, match the cable model specifications with the cable structure to obtain the overall cable production structure. Then, match the cable model specifications with the cable production process to obtain the structure, material, number of cables, pitch and thickness information of each component of the cable. The cable structure is combined with the cable production process to calculate the thickness and outer diameter data of each component, and finally the cable structure diagram is drawn according to the cable drawing data; The system will output the drawn cable structure diagram.

2. The method for automatically drawing a cable structure diagram according to claim 1, wherein: The cable structure template library includes templates of various standard cable types, and each template contains information on conductor arrangement, insulation layer thickness, and shielding layer layout.

3. The method for automatically drawing a cable structure diagram according to claim 1, wherein: The method generates a two-dimensional cross-sectional view and a three-dimensional stereoscopic view of the cable based on a matching template, and marks key dimensions of the cable in the views.

4. The method for automatically drawing a cable structure diagram according to claim 1, wherein: The method supports layered rendering and can display the conductor layer, insulation layer, shielding layer or sheath layer separately. It also supports users to customize cable parameters and dynamically adjust the generation of structural diagrams.

5. The method for automatically drawing a cable structure diagram according to claim 1, wherein: The method provides real-time editing capabilities, allowing users to manually adjust conductor arrangement, layer thickness, or material properties, and supports dynamic simulation to simulate the structural changes of cables under bending, stretching, or high-temperature environments.

6. A system for automatically drawing a cable structure diagram, using the method for automatically drawing a cable structure diagram according to claims 1-5, characterized in that: Includes: Data input module, used to input the model and specifications of the cable to be drawn; Model specification matching module is used to match the input cable model specifications with national standards or enterprise standards. Only the matched model system can draw the cable structure diagram; Cable structure analysis module, used to match cable model specifications with cable structure to obtain the overall cable production structure; The cable process analysis module is used to match cable model specifications with cable production processes to obtain information such as the structure, material, number of cables, pitch, thickness, etc. of each cable component; The cable drawing data calculation module calculates the thickness, outer diameter and other data of each component of the cable by combining the cable structure with the cable production process; The cable structure diagram drawing module draws the cable structure diagram based on the cable drawing data and finally draws the cable structure diagram; The cable structure diagram output module is used to output the drawn cable structure diagram to the display section and provide download at the same time.

7. The system for automatically drawing a cable structure diagram according to claim 6, characterized in that: The data input module provides a graphical interface and API interface, and supports manual input or importing parameters from Excel / CSV.

8. The system for automatically drawing a cable structure diagram according to claim 6, characterized in that: The model specification matching module is connected to the cable structure template library, which is a cloud database and supports real-time update and expansion.

9. The system for automatically drawing a cable structure diagram according to claim 6, characterized in that: The cable structure diagram drawing module supports two-dimensional and three-dimensional drawing modes, and can switch between different viewing angles to display the cable structure.

10. The system for automatically drawing a cable structure diagram according to claim 6, characterized in that: The cable structure diagram output module also provides an export function for the cable structure diagram and supports multiple file formats.

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