WO2021075651A2

WO2021075651A2 - Virtual reality-based ship design pre-inspection system

Info

Publication number: WO2021075651A2
Application number: PCT/KR2020/005018
Authority: WO
Inventors: 서광훈
Original assignee: 주식회사 토즈
Priority date: 2019-10-18
Filing date: 2020-04-14
Publication date: 2021-04-22
Also published as: KR102093857B1

Description

Ship design pre-inspection system based on virtual reality

The present invention relates to a ship design pre-inspection system based on virtual reality. More specifically, a virtual reality-based vessel that can perform pre-inspection in virtual reality by connecting from a number of user terminals through wired/wireless communication, and directly reflect changes in the pre-inspection result to the CAD system of the ship design module. It relates to a design pre-inspection system.

Large structure manufacturing industries such as ships are characterized by long working air, complicated approval procedures, and frequent design changes.

Worldwide, losses due to design changes amount to 1,364 trillion won per year, and even if it is limited to the shipbuilding and marine industry, it reaches 44 trillion won. The average annual loss due to design changes of the three major domestic companies amounted to 91.5 billion won, and design changes due to design errors and changes such as simple design mistakes, design omissions, and interference due to collisions between materials account for 73% of the total design changes.

Meanwhile, as virtual reality technology has reached the level of commercialization due to the recent advancement of digital technology and cost reduction, the demand for digital virtual space is increasing more and more steeply. In all business areas, the dynamic experience of digital virtual space is newly applied and pioneered as a new business model.

In the case of a conventional 2D drawing-based inspection, it depends on the designer's personal ability, and even when inspecting with a 3D drawing, there is a limitation due to the reduced 3D scale, and there is a problem that there is a limitation in time and space due to the independent PC operation and long meetings. .

The present invention was conceived to solve the above problems, and not only reflects the modifications to the CAD system after verification by the design person in charge, but also connects from a plurality of user terminals through wired communication and wireless communication in virtual reality. Pre-inspection can be performed, and changes in the pre-inspection result can be directly reflected in the CAD system of the ship design module, overcoming the limitations caused by the reduced 3D scale, and there are no restrictions on time and space, and a realistic virtual reality similar to that of an actual ship building site. Its purpose is to provide a base ship design pre-inspection system.

A ship design pre-inspection system based on virtual reality according to the present invention conceived to achieve the above object comprises: a ship design module capable of modeling a ship in 2D or 3D; Ship model extraction unit that can extract ship model drawings and material information from ship design module, ship model that can form a cube map to generate VR image by lightening the ship model extracted from ship model extraction module Ship model extraction and modification including a conversion unit, a ship model upload unit that transmits the ship model and drawings extracted from the ship model extraction unit to the integrated management server, and a ship model transmission unit that can transmit changes to the ship model to the ship design module. module; An integrated management server that stores the ship model and drawings extracted from the ship model extraction and change module, and transmits a drawing change command to the ship extraction and change module; It includes a user terminal capable of receiving a ship model from the integrated management server and performing a pre-inspection of virtual reality.

In addition, the integrated management server is a ship database unit that stores ship models, drawings and virtual reality cube maps received from the ship model upload unit of the ship model extraction and modification module, and the pre-test results using the user terminal are transmitted from the user terminal and changed. It further includes a pre-inspection database unit for storing the matters, a ship model extraction and modification module, and a wireless communication unit capable of transmitting and receiving information with a user terminal.

In addition, the user terminal receives the virtual reality cube map from the integrated management server and performs pre-inspection in the virtual reality space, and when design changes including materials, hulls and equipment are changed in the virtual reality space, the changes are integrated with the management server. It further includes being configured, including transmitting to.

According to the present invention, it is possible to perform pre-inspection in virtual reality by accessing from a plurality of user terminals through wireless communication, and it is possible to directly reflect changes in the pre-inspection result to the CAD system of the ship design module.

1 is a diagram showing a relationship between each component of a ship design pre-inspection system based on virtual reality according to a preferred embodiment of the present invention;

2 is a view showing the flow of the ship model is transmitted from the ship design module to the user terminal,

3 is a view showing the flow of design changes transmitted from the user terminal to the ship design module,

The ship design pre-inspection system based on virtual reality according to the present invention comprises: a ship design module capable of modeling a ship in 2D or 3D; Ship model extraction unit that can extract ship model drawings and material information from ship design module, ship model that can form a cube map to generate VR image by lightening the ship model extracted from ship model extraction module Ship model extraction and modification including a conversion unit, a ship model upload unit that transmits the ship model and drawings extracted from the ship model extraction unit to the integrated management server, and a ship model transmission unit that can transmit changes to the ship model to the ship design module. module; An integrated management server that stores the ship model and drawings extracted from the ship model extraction and change module, and transmits a drawing change command to the ship extraction and change module; It includes a user terminal capable of receiving a ship model from the integrated management server and performing a pre-inspection of virtual reality.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible, even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, a preferred embodiment of the present invention will be described below, but the technical idea of the present invention is not limited or limited thereto, and may be modified and variously implemented by a person skilled in the art.

[Amendment by Rule 91 17.06.2020]
1 is a view showing the relationship between each component of the ship design pre-inspection system based on virtual reality according to a preferred embodiment of the present invention. , Figure 3 is a view showing the flow of design changes are transmitted from the user terminal to the ship design module.

First, a method of generating a virtual reality image by stitching a cube map is generally known in detail, and a detailed description thereof will be omitted since the principle is not related to the scope of the present invention.

The ship design pre-inspection system based on virtual reality according to a preferred embodiment of the present invention includes a ship design module 100, a ship model extraction and modification module 200, an integrated management server 300, It comprises a user terminal 400.

The ship design module 100 can design a ship with a CAD system for ship design including Tribon and Aveva Marine, and design a ship design unit capable of designing a ship body and equipment installed on a ship including pipes, railings, ladders, and doors. It consists of a design department that can do it.

The ship model extraction and change module 200 includes a ship model extraction unit 210, a ship model conversion unit 220, a ship model upload unit 230, a ship model transmission unit 240, and a pre-test result collection unit 250. Consists of including.

The ship model extraction unit 210 may extract drawings and material information of the ship model designed in the ship design module 100.

The ship model conversion unit 220 may lighten the ship model extracted from the ship design module 100 using the ship model extraction unit 210 and form a cube map for generating a virtual reality image.

The pre-test result collection unit 250 collects changes in the pre-test result by using a user terminal.

The ship model transmission unit 240 transmits the changes of the ship model collected by the pre-inspection result collecting unit 250 to the ship design module 100.

The integrated management server 300 stores the ship model and drawings extracted from the ship model extraction and change module 200, and transmits a drawing change command to the ship extraction and change module 200.

The integrated management server 300 includes a line database unit 310, a pre-test database unit 320, a wireless communication unit 330, and a user information unit 340.

The ship database unit 310 may store a ship model, a drawing, and a virtual reality cube map transmitted from the ship model upload unit 230 of the ship extraction and modification module 200.

The pre-test database unit 320 may receive a pre-test result using the user terminal 400 from the user terminal 400 and store changes.

The wireless communication unit 330 may transmit and receive information with the ship model extraction and change module 200 and the user terminal 400.

When the user communicates with the server using the user terminal, the user information unit 340 checks the user rights and transmits information on the authorized line to the user terminal using the wireless communication unit.

The user terminal 400 can receive a virtual reality cube map from the integrated management server 300 and perform a preliminary inspection in a virtual reality space, and change when design details including materials, hulls, and equipment are changed in the virtual reality space. The information is transmitted to the integrated management server 300.

Hereinafter, the operation method of the ship design pre-inspection system based on virtual reality will be described in detail.

Referring to FIG. 2, drawings and material information of the ship model designed by the ship design module 100 are extracted from the ship model extraction unit 210 of the ship model extraction and modification module 200.

The drawing and material information of the ship model extracted from the ship model extraction unit 210 are transmitted to the ship model conversion unit 220. The ship model conversion unit 220 reduces the weight of the original file using the polygon/mesh weight reduction algorithm using the received ship model drawing and material information, and forms a cube map for virtual reality.

The ship model conversion unit 220 stores the light weight and mapped drawing information in the ship model upload unit 230 in the ship database unit 310 of the integrated management server 300.

When a user performs a pre-inspection of a virtual reality ship model using the user terminal 400, the drawing information stored in the ship database unit 310 is transmitted using the wireless communication unit 330 of the integrated management server 300 Received, the user can perform a pre-inspection of the virtual reality ship model.

User terminals can be composed of a number of terminals, including a user terminal for production managers, a user terminal for quality managers, and a user terminal for inspectors. When a user enters the conference room, only the line with the authority for each user and the conference room invited are inquired.

In addition, a user with authority for the line can open a conference room through Create. The ship is the unique code of the ship built at the shipyard (e.g. S1680, H2010).

Through the user terminal for the production manager, preliminary inspection can be conducted including whether the installation material is missing, whether it is replaced with another material, and securing the working space. Inspection can be carried out, and preliminary inspections can be carried out, including changing the location of installation materials or equipment, changing the size of materials, additional installation of materials, and checking standards related to safety through the user terminal for inspectors.

Using multiple user terminals, a pre-test can be performed simultaneously through a real-time conference, and pre-test can be performed in several Conrerence Rooms for the same line.

In addition, the user terminal is equipped with user functions including a voice recognition function, a screen capture function, a distance measurement function, an interference check function, a space movement function, a location movement function, an enlargement function, and a drawing function in virtual reality.

The voice recognition function uses the pre-inspection functions provided by the system to perform an inspection when the location of materials, hulls and equipment is changed, or if there is a change including size correction, and then the details of detailed requirements are voiced. If you comment, you can save the user's voice as text.

The screen capture function can capture or record changes including material location change and size change in virtual reality.

The distance measurement function can measure material to material, material to hull, equipment to equipment, and material length.

The interference check function checks for interference and collision between materials and materials, between materials and hulls, and between materials and equipment, and extracts not only physical collisions but also objects that are adjacent within the allowable range according to the specified allowable range and materials within the allowable range. And change the location of the equipment.

When moving to another space, the space movement function marks another space in the ship as a structure and selects the space, all users who are conducting pre-inspection in the conference room can move at the same time, and it is also possible to move only the corresponding user.

When the space inside the ship model is closed, it can be moved using the space movement function when moving to another space.

The location movement function is a function that allows the user to move the location of parts, equipment, and materials of the ship.

The magnification function makes it possible to accurately visually check through the magnification function for small materials or far away from the user's location in virtual reality.

Referring to FIG. 3, after performing a pre-inspection using a user terminal, if there is a change in the ship model, the change is stored in the pre-inspection database of the integrated management server using wireless communication, and the ship model is extracted. And the change module's pre-inspection result collection unit collects the pre-inspection results and transmits it to the ship model transmission unit, and the ship model transmission unit transmits the changes to the ship model extraction and change module based on the name of the entity in virtual reality. After acquiring the drawing information by matching the name of, it is applied to the drawing and transmitted to the ship design module.

According to the present invention, changes in virtual reality can be directly reflected in the CAD design system through the pre-inspection collection unit and the ship model transmission unit.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims

Modular body frame for each component mounting position to facilitate attachment and detachment of components located inside;

A plurality of obstacle detection units provided on the outside of the body frame to detect obstacles located on the progress path;

A collision detection unit provided on an outer surface of the body frame and transmitting a collision signal when a collision signal is encountered with an obstacle outside the detection range of the obstacle detection unit;

A code mark recognition unit provided for recognizing a code mark attached to the floor on the progress path and recognizing a current position and a progress path in the progress direction;

An upper housing coupled to the upper side of the body frame and having a robot operation device including a drive control unit and a rechargeable battery therein;

A coupling portion formed on the upper side of the upper housing and capable of coupling production management equipment including a manipulator and a camera;

A plurality of code marks attached to the progress path of the unmanned transfer robot;

A system control unit that receives signals transmitted from sensors including an obstacle detection unit, a collision detection unit, and a code mark recognition unit, performs an operation, and transmits an operation signal to the production management equipment control unit and the drive control unit;

A production management equipment control unit for receiving a signal transmitted from the system control unit and controlling the operation of production management equipment including a manipulator and camera coupled to the coupling unit;

A driving control unit that receives a signal transmitted from the system control unit and controls an operation of a driving device including a Macanum wheel; And

Mecanum wheels that are connected and provided with independent drive motors on both sides of the body frame, and can be independently driven by a drive signal from the drive control unit.

Containing, a mobile robot platform system for process and production management.
The method of claim 1,

The code mark is formed in a cross type and a diamond type,

The cross type has a central QR code in the center, and 4 QR codes are located on the outer sides of the central QR code and has 5 QR codes.

The diamond type has a central QR code in the center, a cross-shaped blank space is located on the outer four sides of the center QR code, and a QR code is located on all sides of the blank space to have 9 QR codes.

A mobile robot platform system for process and production management that further comprises.
The method of claim 1,

A remote control program including a QR code data, a status display unit for displaying a wireless remote control connection method and equipment connection status confirmation, and an image display unit for displaying a QR code image and a camera image provided in the manipulator; And

Wireless remote control including directional motion control lever, rotary motion control lever, upward motion control button, downward motion control button and safety sensor deactivation button

A mobile robot platform system for process and production management that further comprises.