A rapid simulation analysis method for the installation of electrical support components

Abstract

The present invention provides a rapid simulation analysis method for the installation of electrical support components. After establishing the electrical support component model and the scene model, the simulation state of the electrical support components in the built scene is fixed, and the fixed model is projected onto a virtual reality system for immersive rapid installation simulation analysis. The operator wears an ART full-body motion capture suit, and the operator drives the virtual human to complete the installation and assembly of the electrical support components. Relevant simulation solutions can be obtained quickly and in real time during the virtual installation process. The installation position, installation space, and visual accessibility of the operation of the electrical support components can be quickly simulated and verified in real time, solving the technical problem of the rapid installation of ship electrical support components. The present invention can perform immersive rapid installation simulation analysis in real time and quickly, with simple operation, high installation efficiency, no need for repeated installation and debugging, and saving operation time. It is suitable to be applied as a rapid simulation analysis method for the installation of electrical support components.

Description

Technical Field

[0001] The present invention relates to the field of simulation technology, in particular to a simulation method for the installation of electrical supports during shipbuilding, specifically a rapid simulation analysis method for the installation of electrical supports. Background Art

[0002] There are a large number of electrical supports in shipbuilding, and the production and installation tasks are relatively large. Especially during the installation process, the installation of electrical supports in different areas and compartments is complex. Currently, most installations are carried out on the actual ship by on-site workers, and it is often found that the electrical supports interfere with each other. In this case, the interfering parts need to be removed, readjusted and then reinstalled. If too many interferences are found, it may be necessary to redesign the drawings. After waiting for the new installation plan to be designed, the electrical supports are reinstalled again. Often, a large amount of manpower is required for the installation work, delaying the shipbuilding period.

[0003] During the ship cable laying process, electrical supports need to be built to assist the ship cable laying. The electrical supports mainly include cable trays, cable clamps, cable brackets, etc. Among them, the number of cable brackets is the largest. Cable brackets are further divided into C-shaped brackets, I-shaped brackets, U-shaped brackets, etc. The installation conditions encountered in the whole ship installation are relatively complex, and there are often differences between the drawings and the actual construction. Moreover, the electrical supports are not key facilities in shipbuilding, and the attention level in the design drawings is relatively low. Due to their large number and long installation time, the construction period is often delayed due to the interference between electrical supports.

[0004] Before the actual cable laying, simulating the actual ship installation state through simulation will be beneficial to the actual ship installation. During the simulation process, it can be found whether there is interference between the supports during the cable laying process, whether the installation position is reasonable, and verify whether there is a difference between the theoretical installation and the actual installation. Summary of the Invention

[0005] In order to improve the shipbuilding speed, the present invention proposes a rapid simulation analysis method for the installation of electrical supports. After establishing the electrical support model and the scene model, the simulation state of the electrical supports in the built scene is fixed, and the fixed model is projected onto the virtual reality system for immersive rapid installation simulation analysis. The operator wears an ART full-body motion capture suit, and the operator drives the virtual human to complete the installation and assembly of the electrical supports. Relevant simulation schemes can be obtained quickly and in real time during the virtual installation process. The installation position, installation space, and visual accessibility of the operation of the electrical supports can be quickly simulated and verified in real time, improving the simulation verification efficiency, and putting the verified scheme into the actual ship construction to solve the technical problem of the rapid installation of ship electrical supports.

[0006] A rapid simulation analysis method for the installation of electrical supports is realized through the following steps:

[0007] 1) Modeling of electrical support components. Simulate the real electrical support components to statically reflect the shape, position, and installation relationship of the electrical support component entities, and model the electrical support components, including cable trays, cable tight hooks, cable C-shaped brackets, I-shaped brackets, U-shaped brackets, etc. Collect data on the shape, position, and dimensions of the above physical entities of the electrical support components, and perform geometric modeling using relevant software.

[0008] 2) Scene model construction. Construct the scene model for the area where the electrical support components are located. First, turn on the server to distinguish the categories of electrical support components in the verification area, list the quantity and spatial distribution of each different electrical support component, distinguish the installation timing and scenarios of different electrical support components, and construct the scene model.

[0009] 3) Fixing the simulation state. Fix the simulation state of the electrical support components in the constructed scene, especially the human-machine simulation state. Fix the human-machine installation simulation states of different electrical support components through the manufacturing simulation module in the 3DE software, and perform synchronous screen projection through the virtual review software Techviz. Intercept the three-dimensional data of the graphics card based on OpenGL, and project the simulation state onto the four-sided CAVE virtual reality system in real time.

[0010] 4) Start the ART optical motion capture system. The motion capture system calculates the position information and rotation angle information of each part of the human body based on the principle of optical reflection to capture the human body position. When tracking the marker points, the 3D coordinates are reconstructed based on the rigid bodies recognized by each camera in the 2D image system. The data results of the tracked object are sent from the camera to the control host. The control host calculates the six-degree-of-freedom information of the rigid body and sends it to the application software through the Dtrack software (optical motion capture front-end control software). The control host obtains the stereoscopic image and synchronization signal of the workstation and projects it onto the four-sided CAVE system to prepare for the next step of immersive rapid simulation analysis.

[0011] 5) Immersive rapid installation simulation analysis. In the constructed model area, perform rapid installation simulation analysis on a series of electrical support components with the simulation state fixed. Use the handle controller and the ART optical motion capture system for immersive rapid installation simulation analysis. The operator wears the ART full-body motion capture suit, and the operator drives the virtual human to complete the installation and assembly of the electrical support components, and can obtain relevant simulation solutions quickly and in real time during the virtual installation process.

[0012] Positive effects: In view of the problem that there are numerous electrical support components and it is impossible to accurately, quickly, and comprehensively conduct installation simulation verification, the present invention imports the electrical support component model and the scene model into the virtual reality system through a four-sided CAVE virtual reality system, solidifies the simulation state, and through the virtual interactive installation of personnel, conducts immersive rapid installation simulation analysis in real time and quickly, meeting the rapid installation simulation verification of electrical support components within the area. The similarity between virtual human installation and real human installation is high, which can improve the efficiency and effect of the installation of electrical support components in production, is easy to operate, has high installation efficiency, does not require repeated installation and debugging, and saves operation time. It is suitable to be applied as a rapid simulation analysis method for the installation of electrical support components. Description of the Drawings

[0013] Figure 1 It is a schematic flow chart of the present invention. Specific Embodiments

[0014] To make the objectives, 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 accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention claimed, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0015] In the present invention, all embodiments, implementation manners, and features of the present invention can be combined with each other without contradiction or conflict. In the present invention, conventional devices, apparatuses, components, etc. can either be commercially purchased or manufactured according to the content disclosed in the present invention. In the present invention, to highlight the key points of the present invention, some conventional operations and devices, apparatuses, components are omitted or only briefly described.

[0016] Referring to the accompanying drawings of the specification, a rapid simulation analysis method for the installation of electrical support components includes the following steps:

[0017] 1) Modeling of electrical support components. Simulate the real electrical support components, statically reflect the shape, position, and installation relationship of the electrical support component entity, and model the electrical support components, including cable trays, cable tight hooks, cable C-shaped brackets, I-shaped brackets, U-shaped brackets, etc. Collect data on the shape, position, and size of the above electrical support component physical entities, and use relevant software for geometric modeling.

[0018] Use the Part Design Essentials module in Catia software to construct the models of electrical support components, highlighting only the external dimensions of different electrical support components, including cable trays, cable tight hooks, cable C-brackets, I-brackets, U-brackets, etc. The support installation positions of cable trays can be adjusted appropriately according to the production design drawings, but it should be ensured that the support points of the cable trays are evenly symmetric to avoid local excessive pressure on the trays. The models and specifications of the support component models should be consistent with the drawings. Model them in Catia according to the drawing specifications. For electrical support components with marked positioning dimensions, during modeling, the positioning deviation in the cable channel direction should meet ±10 mm, and the positioning deviation in other directions should meet ±5 mm; for electrical support components without marked positioning dimensions, check their spacing distances. The spacing of cable trays in the straight section along the channel direction should be 300 mm, the spacing of other system tight hooks should be 200 mm - 300 mm, the spacing of B-type cable brackets should be 50 mm, and the spacing of I-type cable brackets should be 300 mm. The overall tray should be continuous. Construct the models of various electrical support components in the area according to the above parameters and requirements.

[0019] 2) Scene model construction. Construct the scene model for the area where the electrical support components are located. First, open the server to distinguish the categories of electrical support components in the verification area, list the quantity and spatial distribution of each different electrical support component, distinguish the installation timing and scenes of different electrical support components, and then construct the scene model.

[0020] Construct the scene model, and construct the scene models for each stage of the installation of electrical support components. Through the processing of different background models in the sub-assembly, compartment, and area, complete the model construction during the installation of electrical support components.

[0021] 3) Fix the simulation state. Fix the simulation state of the electrical support components with the constructed scene, especially the human-machine simulation state. Fix the human-machine installation simulation states of different electrical support components through the manufacturing simulation module in 3DE software, and perform synchronous screen projection through the virtual review software Techviz. Based on OpenGL, intercept the three-dimensional data of the graphics card and project the simulation state onto the four-sided CAVE virtual reality system in real time.

[0022] Fix the simulation state during the installation of electrical support components. Combine the installation process of electrical support components, analyze the state of each step of the installation process of electrical support components, and solidify the installation state of electrical support components in the area through the manufacturing simulation module in Catia. For those that require human-machine simulation, roughly place the positions of virtual humans. After fixing the installation simulation state, communicate fully with process personnel and front-line construction personnel to jointly evaluate the simulation state of the installation process of electrical support components and achieve full solidification.

[0023] 4) Start the ART optical motion capture system. Based on the principle of optical reflection, the motion capture system calculates the position information and rotation angle information of each part of the human body to capture the human body position. When tracking the marker points, the 3D coordinates are reconstructed based on the rigid bodies recognized by each camera in the 2D image system. The data results of the tracked object are sent from the camera to the control host. The control host calculates the six-degree-of-freedom information of the rigid body and sends it to the application software through the Dtrack software (optical motion capture front-end control software). The control host obtains the stereoscopic image and synchronization signal of the workstation and projects it onto the four-sided CAVE system to prepare for the next immersive rapid simulation analysis.

[0024] 5) Immersive rapid installation simulation analysis. In the established model area, conduct rapid installation simulation analysis on a series of electrical support components after the simulation state is fixed. Use the handle controller and the ART optical motion capture system for immersive rapid installation simulation analysis. The operator wears the ART full-body motion capture suit, and the operator drives the virtual human to complete the installation and assembly of the electrical support components. Relevant simulation plans can be obtained quickly and in real time during the virtual installation process. The installation position, installation space, and visual accessibility of the operation of the electrical support components can be quickly simulated and verified in real time to improve the simulation verification efficiency.

[0025] The operator conducts immersive rapid installation simulation analysis on the electrical support components with fixed simulation states in the four-sided CAVE display system. The operator wears the ART optical motion capture suit, holds the simulation tool in the left hand to drive the installation tool, and holds the handle controller in the right hand to drive various types of electrical support components. The electrical installation technicians and front-line construction workers wear infrared stereoscopic glasses and participate in the immersive installation of the electrical support components together. They can analyze and evaluate the installation of the electrical support components in a timely manner, and at the same time interact with the installation process of the electrical support components in real-time immersion, experience the installation process like that on a real ship, conduct immersive installation on each electrical support component in the area one by one, complete the immersive rapid installation of the electrical support components in the area in a short time, and put the verified installation plan into the real ship construction, achieving the purpose of saving manpower, material resources, and financial resources and shortening the construction period.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code. The solutions in the embodiments of the present application can be implemented in various computer languages. For example, object-oriented programming languages such as Java and interpreted scripting languages such as JavaScript can be used.

[0027] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0028] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0029] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0030] Although the preferred embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present application.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A rapid simulation analysis method for the installation of electrical support components, characterized in that: It includes the following steps: 1) Modeling of electrical support components: Simulate the real electrical support components to statically reflect the shape, position, and installation relationship of the electrical support component entities. Model the electrical support components, including cable trays, cable tight hooks, cable C-shaped brackets, I-shaped brackets, and U-shaped brackets. Collect data on the shape, position, and size of the above physical entities of the electrical support components, and perform geometric modeling with relevant software; 2) Scene model construction: Construct a scene model for the area where the electrical support components are located. First, open the server, distinguish the types of electrical support components in the verification area, list the quantity and spatial distribution of each different electrical support component, distinguish the installation timing and scenarios of different electrical support components, and construct the scene model; 3) Fixing the simulation state: Fix the simulation state of the electrical support components with the constructed scene, fix the human-machine simulation state, fix the human-machine installation simulation states of different electrical support components through the manufacturing simulation module in 3DE software, perform synchronous screen projection through the virtual review software Techviz, intercept the three-dimensional data of the graphics card based on OpenGL, and project the simulation state onto the four-sided CAVE virtual reality system in real time; 4) Start the ART optical motion capture system: The motion capture system calculates the position information and rotation angle information of each part of the human body based on the principle of optical reflection to capture the human body position. When tracking the marker points, the 3D coordinates are reconstructed based on the rigid bodies recognized by each camera in the 2D image system. The data results of the tracked object are sent from the camera to the control host. The control host calculates the six-degree-of-freedom information of the rigid body and sends it to the application software through Dtrack software. The control host obtains the stereoscopic image and synchronization signal of the workstation and projects it onto the four-sided CAVE system to prepare for the next step of immersive rapid simulation analysis; 5) Immersive rapid installation simulation analysis: In the constructed model area, perform rapid installation simulation analysis on a series of electrical support components with the simulation state fixed. Use the handle controller and the ART optical motion capture system for immersive rapid installation simulation analysis. The operator wears the ART full-body motion capture suit, and the operator drives the virtual human to complete the installation and assembly of the electrical support components, and can obtain relevant simulation solutions quickly and in real time during the virtual installation process.

2. The rapid simulation analysis method for the installation of electrical support components according to claim 1, characterized in that: 1) Modeling of the electrical support components. The models of the electrical support components are constructed by using the Part Design Essentials module in the Catia software, highlighting the external dimensions of different electrical support components, including cable trays, cable tight hooks, cable C-shaped brackets, I-shaped brackets, U-shaped brackets, etc. The support installation positions of the cable trays can be appropriately adjusted according to the production design drawings, but it should be ensured that the support points of the cable trays are evenly symmetric to avoid local large pressure on the trays. The models, types, and specifications of the support components should be consistent with the drawings. When modeling in Catia according to the drawing specifications, for the electrical support components with marked positioning dimensions, the positioning deviation along the cable channel direction during modeling should meet ±10 mm, and the positioning deviation in other directions should meet ±5 mm; for the electrical support components without marked positioning dimensions, check their spacing distances. The spacing of the cable brackets in the straight section along the channel direction should be 300 mm, the spacing of the tight hooks in other systems should be 200 mm - 300 mm, the spacing of the B-type cable brackets should be 50 mm, and the spacing of the I-type cable brackets should be 300 mm. The overall tray should be continuous. The models of various electrical support components in the area are constructed according to the above parameters and requirements.

3. The rapid simulation analysis method for the installation of electrical support components according to claim 1, characterized in that: 2) Scene model construction, including the construction of different background models in the general section, cabin, and area.

4. The rapid simulation analysis method for the installation of electrical support components according to claim 1, characterized in that: 3) Fixing the simulation state. Fix the simulation state during the installation of the electrical support components. Combine the installation process of the electrical support components, analyze the state of each step of the installation process of the electrical support components, and solidify the installation state of the electrical support components in the area through the manufacturing simulation module in Catia. For those that require human-machine simulation, roughly place the position of the virtual person. After fixing the installation simulation state, communicate fully with the process personnel and front-line construction personnel to jointly evaluate the simulation state of the installation process of the electrical support components and achieve full solidification.

5. The rapid simulation analysis method for the installation of electrical support components according to claim 1, characterized in that: 5) Immersive rapid installation simulation analysis. The operator conducts immersive rapid installation simulation analysis on the electrical support components with fixed simulation states in the area in the four-sided CAVE display system. The operator wears the ART optical motion capture suit, holds the simulation tool in the left hand to drive the installation tool, and holds the handle controller in the right hand to drive various types of electrical support components. The electrical installation process personnel and front-line construction personnel wear infrared stereoscopic glasses and participate in the immersive installation of the electrical support components together. They can analyze and evaluate the installation of the electrical support components in the first time, and at the same time interact with the installation process of the electrical support components in real-time immersion, experience the installation process like a real ship, conduct immersive installation on each electrical support component in the area one by one, complete the immersive rapid installation of the electrical support components in the area in a relatively short time, and put the verified installation plan into the construction of the real ship.

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