KR-20260064821-A - Tolerance control system of hull block and method for the same

KR20260064821AKR 20260064821 AKR20260064821 AKR 20260064821AKR-20260064821-A

Abstract

The present invention relates to a ship block accuracy management system and method, and is a system for managing accuracy of a plurality of blocks constituting a ship, comprising: a data input unit for acquiring structural data for said blocks; a mobile robot that moves on said blocks and acquires photographic data for said blocks; a data comparison unit that compares the photographic data by said mobile robot with said structural data; and an output unit that outputs the comparison result of said data comparison unit, wherein the data comparison unit calculates the accuracy of said blocks based on whether there is a match between said photographic data and said structural data.

Inventors

이동건
정기석
이해정
서광철

Assignees

국립목포해양대학교산학협력단

Dates

Publication Date: 20260508
Application Date: 20241029

Claims (12)

As a system for managing the accuracy of multiple blocks constituting a ship, A data input unit for acquiring structural data for the above block; A mobile robot that moves on the above block and acquires shooting data for the above block; A data comparison unit that compares the captured data by the mobile robot with the structural data; and It includes an output unit that outputs the comparison result of the above-mentioned data comparison unit, and The above data comparison unit is, A ship block accuracy management system that calculates the accuracy of the block based on whether there is a match between the above-mentioned shooting data and the above-mentioned structural data.
In claim 1, the mobile robot is, Body; A means of movement provided to move the body on the above block; A shooting means provided on the above body and for photographing the above block; A storage means for storing shooting data captured by the above-mentioned shooting means; and A ship block accuracy management system comprising a communication means for transmitting the above-mentioned shooting data to the above-mentioned data comparison unit.
In claim 2, the means of movement is, It includes multiple legs with joints, The above-mentioned shooting means is, A ship block quality control system that photographs the block using at least one of a camera, radar, and lidar.
In claim 1, the data input unit is, A ship block accuracy management system that acquires design data for the above block as structural data.
In claim 4, the above design data is, A ship block quality management system comprising data on members constituting the block and data on appendages installed on the block.
In claim 5, the data comparison unit is, A ship block accuracy management system that calculates the accuracy of the block by verifying at least one of the presence, location, and specifications of the member and the addition, based on whether there is a match between the above-mentioned photographic data and the above-mentioned structural data.
In claim 1, the mobile robot is, A scanning unit that captures the above block to obtain 3D scan data; A model generation unit that generates a digital model for the block through a deep learning object recognition model based on the scan data above; and It includes a data calculation unit that calculates three-dimensional data for the block based on the digital model above, and The above data comparison unit is, A ship block accuracy management system that calculates the accuracy of the block by matching the above three-dimensional data and the above structural data.
In claim 1, the data input unit is, Scan data for the above block is acquired as the above structural data, The above mobile robot is, A ship block quality management system that acquires photographic data for the block after at least one of movement, loading, and partial launching is performed on the block for which structural data has been acquired.
As a method for managing the degree of multiple blocks constituting a ship, A step of acquiring structural data for the above block; A step of acquiring photographic data of the block through a mobile robot moving on the block; A step of comparing the captured data by the mobile robot with the structural data; and It includes a step of outputting a comparison result of the above-mentioned shooting data and the above-mentioned structural data, and The step of comparing the above-mentioned shooting data with the above-mentioned structural data is A ship block accuracy management method that calculates the accuracy of the block based on whether there is a match between the above-mentioned shooting data and the above-mentioned structural data.
In claim 9, the mobile robot is, Body; A means of movement provided for moving the body on the block, comprising a plurality of legs having joints; and A method for managing the accuracy of a ship block, comprising a shooting means provided on the body and capable of photographing the block using at least one of a camera, radar, and lidar.
In claim 9, the step of acquiring the above-mentioned structural data is, Design data for the above block is acquired as the above structural data, and The step of acquiring the above-mentioned shooting data through the above-mentioned mobile robot is, A step of obtaining 3D scan data by photographing the above block; A step of generating a digital model for the block through a deep learning object recognition model based on the scan data; and It includes a step of calculating three-dimensional data for the block based on the digital model, and The step of comparing the above-mentioned shooting data with the above-mentioned structural data is A method for managing the accuracy of a ship block, which calculates the accuracy of the block by verifying at least one of the presence, location, and specifications of a member constituting the block and an add-on installed on the block, based on whether there is a match between the above-mentioned photographic data and the above-mentioned structural data.
In claim 9, the step of acquiring the above-mentioned structural data is, Scan data for the above block is acquired as the above structural data, The step of acquiring the above-mentioned shooting data through the above-mentioned mobile robot is, A ship block accuracy management method performed after at least one of movement, loading, and partial launching is performed on the block for which the above structural data has been acquired.

Description

Tolerance control system of hull block and method for the same The present invention relates to a ship block accuracy management system and method. A ship is a structure that carries people or cargo and operates while floating on the sea, and is classified into container ships, gas carriers, crude oil tankers, bulk carriers, etc., depending on the type of cargo being transported. Such a vessel can be completed by fabricating blocks containing at least a part of the hull and internal reinforcing members using steel plate members, and then welding multiple blocks together outside or inside a dock. Numerous structural members and fittings, such as piping, exist on the blocks, and these structural members and fittings must be interconnected when the blocks are linked. However, if parts of the blocks are manufactured differently from the design intent during the production process, or if parts of the blocks are deformed during transportation, proper installation of the blocks is inevitably impossible. In such cases, installation is carried out only after repair work is performed on the incorrectly manufactured or deformed blocks, resulting in issues such as construction delays and wasted costs. Thorough quality control of blocks is essential to manage shipbuilding schedules and prevent unnecessary costs. However, while quality control requires a close inspection of the block's condition, access may be difficult depending on the shape of the blocks forming the hull, posing a risk of safety accidents during the inspection process. As such, quality control of blocks is an essential task, but since a method to safely, efficiently, and accurately verify block quality has not yet been secured, research and development in this regard are urgent. FIG. 1 is a block diagram of a ship block accuracy management system according to one embodiment of the present invention. FIG. 2 is a diagram showing data of a block in a ship block accuracy management system according to one embodiment of the present invention. FIG. 3 is a perspective view of a mobile robot of a ship block accuracy management system according to one embodiment of the present invention. FIG. 4 is a block diagram of a mobile robot of a ship block accuracy management system according to one embodiment of the present invention. FIG. 5 is a partial block diagram of a mobile robot of a ship block accuracy management system according to one embodiment of the present invention. FIG. 6 is a diagram showing the use of a ship block accuracy management system according to one embodiment of the present invention. FIG. 7 is a flowchart of a method for managing the accuracy of a ship block according to one embodiment of the present invention. FIG. 8 is a partial flowchart of a ship block accuracy management method according to one embodiment of the present invention. The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numerals to the components of each drawing in this specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a block diagram of a ship block accuracy management system according to one embodiment of the present invention, and FIG. 2 is a diagram showing data of a block in a ship block accuracy management system according to one embodiment of the present invention. Referring to FIGS. 1 and 2, a ship block accuracy management system (1) according to one embodiment of the present invention is a system for managing accuracy of a plurality of blocks (B) constituting a ship, and includes a data input unit (100), a mobile robot (200), a data comparison unit (300), and an output unit (400). The data input unit (100) acquires structural data for the blocks (B) that constitute the ship. The structural data can be used as a reference value to check the degree of the blocks (B) that make up the ship. Structural data may be design data or scan data. In the former case, the data input unit (100) may acquire design data for a block (B) as structural data. In this case, the design data may be acquired from a terminal or server used for design. Design data may contain sufficient information for comparison with the imaging data to be described later. For example, the design data may include data regarding a component (P) constituting the block (B), where the data may include the presence or absence of the component (P), the installation location of the