KR102191401B1 - Virtual Inspection Method for Loading Container, Virtual Inspection System for Loading Container and Method for Repairing Ship - Google Patents

Abstract

The present invention is a step of obtaining measurement data by measuring a cargo hold in which a plurality of cell guides are installed using a 3D scanner, and obtaining scan data for a cargo hold using the obtained measurement data, and using the scan data for the cargo hold. Generating modeling data for the cargo hold, loading a virtual container in cells located inside the cell guides using the modeling data for the cargo hold, and generating result data according to loading the virtual container Including the step of, and generating result data according to the loading of the virtual container is an error that deviates from a preset reference interval information among space information between the virtual container and the cell guide according to the height of the virtual container. A virtual container loading inspection method, a virtual container loading inspection system, and ship maintenance comprising the step of extracting spacing information and acquiring a position of a cell guide out of preset reference spacing information according to the extracted error spacing information It's about how.

Description

Virtual container loading inspection method, virtual container loading inspection system, and ship maintenance method {Virtual Inspection Method for Loading Container, Virtual Inspection System for Loading Container and Method for Repairing Ship}

The present invention relates to a virtual container loading inspection method and a ship maintenance method for maintaining a ship by performing a container loading inspection virtually.

In general, a cargo hold is installed on a vessel loading a container. The cargo hold is installed inside the ship's hull and can carry dozens to hundreds of containers. Cell guides are installed in these cargo holds to increase the loading efficiency of numerous containers. A plurality of cell guides are installed on the inner wall of the cargo hold at regular intervals. A container is inserted into the cell, which is a space formed between the cell guide and the cell guide. Accordingly, the cell guide can increase the loading efficiency by guiding the container so that the container is efficiently arranged. In addition, the cell guide performs a function of supporting the container to prevent the container from shaking or collapsing of the loaded container during operation of the ship.

Containers are loaded or unloaded in the hold through cell guides. For example, when a container is loaded in a cargo hold, the container is lifted by a crane such as a trolley and then guided by a cell guide to be lowered and loaded in the cargo hold. When the container is unloaded from the hold, the container loaded in the hold is unloaded to the outside by a crane.

On the other hand, since the container is loaded or unloaded in the cargo hold along the cell guide, if the gap between the cell guides is narrow, the container may not be jammed and additional containers may not be loaded, and scratches may occur or products contained inside may be damaged. If the gap between the cell guides is wide, the container has a risk of collapsing as the vessel shakes together. In this case, as an external force is applied to the cell guide during use of the vessel, such as during operation, the cell guide may be deformed, such as narrowing or widening the gap between the cell guides. Therefore, a container loading inspection is performed to confirm whether the cell guide of the ship maintains the correct spacing.

The container loading inspection method according to the prior art was actually carried out by using a crane to load a container into a cargo hold along a cell guide. Accordingly, the container loading inspection method according to the prior art has the following problems.

First, in the container loading inspection method according to the prior art, a crane must be used to load a container in a cargo hold along a cell guide, so there is a problem of delaying other processes requiring a crane as the crane is used for a long time.

Second, since the container loading inspection method according to the prior art is performed on a ship at a high place, there is a problem that there is a great risk of a safety accident for a worker.

Third, the container loading inspection method according to the prior art has to load the container by using a crane along the cell guides that divide the cargo hold into hundreds of cells as the ship becomes larger, so the time required for loading inspection increases as well as the above-described method. There is a problem that deepens the same problem.

Fourth, in the container loading inspection method according to the prior art, it is impossible to check whether the distance between the container and the cell guides is maintained at the designed distance while the container is loaded into the cargo hold along the cell guides. When is completed, it was judged not to be defective. Accordingly, in the container loading inspection method according to the prior art, there is a problem that the accuracy and reliability of the inspection result are deteriorated.

The present invention has been devised to solve the problems of the prior art, and provides a virtual container loading inspection method, a virtual container loading inspection system, and a ship maintenance method capable of performing container loading inspection without using a crane. will be.

The present invention is to provide a virtual container loading inspection method, a virtual container loading inspection system, and a ship maintenance method that can eliminate the risk of occurrence of a safety accident for a worker and shorten the time taken for loading inspection.

The present invention is to provide a virtual container loading inspection method, a virtual container loading inspection system, and a ship maintenance method capable of preventing the accuracy and reliability of loading inspection results from deteriorating.

In order to solve the problems as described above, the present invention may include the following configuration.

The virtual container loading inspection method according to the present invention includes the steps of obtaining measurement data by measuring a cargo hold in which a plurality of cell guides are installed using a three-dimensional scanner, and obtaining scan data for a cargo hold using the obtained measurement data; Generating modeling data for a cargo hold by using the scan data for the cargo hold; Loading virtual containers into cells located inside the cell guides using modeling data for the cargo hold; And generating result data according to the loading of the virtual container. The generating result data according to the loading of the virtual container may include extracting error spacing information that deviates from preset reference spacing information from among spacing information of the virtual container and the cell guide according to the height of the virtual container. And acquiring a position of the cell guide outside of the preset reference interval information according to the extracted error interval information.

In the virtual container loading inspection method according to the present invention, the obtaining of the scan data for the cargo hold comprises the steps of dividing the cargo hold into a plurality of areas to obtain measurement data for the cells for each area, and for the cells. It may comprise the step of generating scan data for the cargo hold by matching the measurement data.

In the virtual container loading inspection method according to the present invention, the matching of the measurement data for the cells comprises the steps of extracting error measurement data that deviates from preset reference measurement data among measurement data for the cells, and the error measurement It may include obtaining measurement data for cells excluding data.

In the virtual container loading inspection method according to the present invention, the loading of the virtual container into the cells comprises lowering the virtual container into the cells, and the virtual container and the cell according to the height of the virtual container. It may include the step of acquiring the interval information of the guide.

The ship maintenance method according to the present invention includes the steps of obtaining measurement data by measuring a cargo hold in which a plurality of cell guides are installed using a three-dimensional scanner, and obtaining scan data for a cargo hold using the obtained measurement data; Generating modeling data for a cargo hold by using the scan data for the cargo hold; Loading virtual containers into cells located inside the cell guides using modeling data for the cargo hold; And generating result data according to the loading of the virtual container. The generating result data according to the loading of the virtual container may include extracting error spacing information that deviates from preset reference spacing information from among spacing information of the virtual container and the cell guide according to the height of the virtual container. , Acquiring a position of a cell guide out of the preset reference interval information according to the extracted error interval information, and maintaining a cell guide out of the reference interval information.

In the ship maintenance method according to the present invention, the step of maintaining the cell guide that deviates from the reference interval information includes the minimum movement of the cell guide so that the distance between the virtual container and the cell guide belongs to preset reference interval information. Calculating a value, determining whether or not other cell guides are interfered with when the cell guide moves according to the minimum movement value of the cell guide, and if it is determined that the other cell guide is not interfered, the cell guide is set to the minimum movement value. It may include the step of moving.

The virtual container loading inspection system according to the present invention includes: a scan data acquisition unit that acquires scan data for a cargo hold from measurement data obtained for a cargo hold in which a plurality of cell guides are installed using a three-dimensional scanner; A modeling data generator that generates modeling data for a cargo hold from the scan data; A virtual loading inspection unit for loading virtual containers into cells located inside the cell guides from the modeling data for the cargo hold; And a result data generator that generates result data according to the loading of the virtual container. The result data generation unit is an error interval information extraction module for extracting error interval information deviating from a preset reference interval information from among interval information of the virtual container and the cell guide according to the height of the virtual container, and the extracted error It may include an error location acquisition module for acquiring the location of the cell guide out of the preset reference interval information according to the spacing information.

According to the present invention, the following effects can be achieved.

The present invention is implemented to perform the container loading inspection virtually, so that the loading inspection can be performed without using a crane, it is possible to prevent delays in other processes requiring the use of the crane.

The present invention is implemented to perform a container loading inspection virtually, thereby eliminating the risk of a safety accident for an operator, and shortening the time taken for loading inspection.

The present invention is implemented to perform a container loading inspection virtually, thereby improving the accuracy and reliability of the loading inspection result, thereby increasing the competitiveness of the ship quality.

1 is a schematic block diagram of a virtual container loading inspection system according to the present invention
2 is a schematic flowchart of a virtual container loading inspection method according to the present invention
3 is a schematic flowchart for explaining a scan data acquisition step in a virtual container loading inspection method according to the present invention
4 is a schematic flowchart illustrating a measurement data matching step in a virtual container loading inspection method according to the present invention
5 is a schematic flowchart of a ship maintenance method according to the present invention
Figure 6 is a schematic flow chart for explaining the cell guide maintenance steps in the ship maintenance method according to the present invention

In the present specification, in adding reference numerals to elements of each drawing, it should be noted that only the same elements have the same number as possible, even if they are indicated on different drawings.

Meanwhile, the meaning of terms described in the present specification should be understood as follows.

Singular expressions should be understood as including plural expressions unless clearly defined differently in context, and terms such as “first” and “second” are used to distinguish one element from other elements, The scope of rights should not be limited by these terms.

It is to be understood that terms such as "comprise" or "have" do not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

The term “at least one” is to be understood as including all possible combinations from one or more related items. For example, the meaning of “at least one of the first item, the second item, and the third item” means 2 among the first item, the second item, and the third item as well as the first item, the second item, and the third item. It means a combination of all items that can be presented from more than one.

Hereinafter, an embodiment of a virtual container loading inspection system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a virtual container loading inspection system according to the present invention.

Referring to FIG. 1, the virtual container loading inspection system 1 according to the present invention checks whether the cell guides maintain the correct spacing by performing an inspection of virtually loading a container in a cargo hold in which the container is loaded. For. In the cargo hold, a cell guide for guiding the container from the top to the bottom, guide fittings and cones installed on the bottom of the cargo hold to prevent the container from moving may be installed.

The virtual container loading inspection system 1 according to the present invention performs an inspection of virtually loading a container in a cargo hold, so that a cell guide whose spacing is narrowed or widened due to an external force such as rolling during a use process such as ship operation (hereinafter , "Deformed cell guide") can be extracted to obtain the location of the modified cell guide. In particular, the virtual container loading inspection system 1 according to the present invention extracts a three-dimensional shape for a cell guide installed in a cargo hold using a three-dimensional scanner, then generates a model for a cargo hold, and generates a virtual container for the cargo hold modeling. By loading, it is possible to obtain the position of the deformed cell guide by performing a virtual loading inspection on the cargo hold.

To this end, the virtual container loading inspection system 1 according to the present invention includes a scan data acquisition unit 2 for acquiring scan data for a cargo hold from measurement data acquired for a cargo hold in which a plurality of cell guides are installed, and from the scan data. A modeling data generation unit 3 for generating modeling data for a cargo hold, a virtual loading inspection unit 4 for loading a virtual container into cells located inside the cell guides from the modeling data for the cargo hold, and the virtual container It includes a result data generation unit 5 for generating result data according to the loading.

The scan data acquisition unit 2 acquires measurement data using a 3D scanner. The measurement data may be obtained by scanning the cargo hold by a 3D scanner after installing a calibration target inside and outside the cargo hold. For example, the 3D scanner may measure a distance from an installed position to a specific point of the cargo hold. Accordingly, the measurement data may include position coordinates for a specific point of the cargo hold. The measurement data may include a plurality of position coordinates for the entire cargo hold. The scan data acquisition unit 2 may acquire scan data for a cargo hold by matching a plurality of position coordinates included in the measurement data using the calibration target. The modeling data generation unit 3 may generate a virtual cargo hold by generating modeling data for a cargo hold from the scan data. The virtual loading inspection unit 4 may load virtual containers in the cells formed in the virtual cargo hold. In this case, the virtual loading inspection unit 4 may obtain a gap between the virtual container and the cell guide according to the height of the virtual container. The result data generation unit 5 includes an error interval information extraction module 51 for extracting error interval information that deviates from a preset reference interval information from among interval information between a virtual container and a cell guide according to the height of the virtual container, and And an error location acquisition module 52 for acquiring a position of a cell guide that deviates from a preset reference interval information according to the extracted error interval information, and the error interval information extraction module 51 and the error location acquisition module 52 ) To obtain the position of the deformed cell guide.

Accordingly, the virtual container loading inspection system 1 according to the present invention can achieve the following operational effects.

First, the virtual container loading inspection system 1 according to the present invention is implemented to perform a container loading inspection virtually, so that loading inspection can be performed without using a crane, thus preventing delays in other processes requiring the use of a crane. In addition, it is possible to quickly determine the location of the deformed cell guide.

Second, the virtual container loading inspection system 1 according to the present invention is implemented to perform a container loading inspection virtually, thereby eliminating the risk of a safety accident for an operator and shortening the time taken for loading inspection.

Third, the virtual container loading inspection system 1 according to the present invention is implemented to perform a container loading inspection virtually, thereby improving accuracy and reliability of the loading inspection result.

Hereinafter, the scan data acquisition unit 2, the modeling data generation unit 3, the virtual loading inspection unit 4, and the result data generation unit 5 will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the scan data acquisition unit 2 acquires scan data for a cargo hold from measurement data. The measurement data may be obtained by dividing a cargo hold in which a plurality of cell guides are installed into a plurality of areas and scanning each area by a 3D scanner. The measurement data may include a plurality of positional coordinates for the cargo hold. The scan data acquisition unit 2 extracts error data that deviates from preset reference measurement data among measurement data for cells, and acquires measurement data for cells excluding the extracted error data. The cell is located inside the cell guides and is a space for loading a container. The reference measurement data includes a distance to the cargo hold and a location coordinate based on the 3D scanner, and may be set in advance by an operator. The error data are data in which information of a cell guide, a guide fitting, and a cone forming the cargo hold are different from other measurement data, and are determined as obstacles and are excluded from the measurement data. The scan data acquisition unit 2 may generate scan data for a cargo hold by matching measurement data excluding the error data.

Referring to FIG. 1, the modeling data generation unit 3 generates modeling data for a cargo hold from the scan data. For example, the modeling data generation unit 3 may extract the shape of a cargo hold from scan data composed of a plurality of positional coordinates. The modeling data generating unit 3 may extract scan data of the cell guide forming a cargo hold, the guide fitting, and the cone from among the scan data obtained by the scan data obtaining unit 2. Accordingly, the virtual container loading inspection system 1 according to the present invention can reduce the capacity of the modeling data. If the capacity of the modeling data is reduced, it is possible to shorten a simulation time for loading a virtual container in the cargo hold.

The modeling data generation unit 3 may generate modeling data for the cargo hold through the following process.

First, the modeling data generation unit 3 extracts point cloud data of the cell guide.

Next, a validity limit value of the cell guide point cloud data is selected. This operation may be performed by the modeling data generation unit 3. The modeling data generation unit 3 may select a validity limit value of the cell guide point cloud data using information input by an operator.

Next, the cell guide cross-sectional shape is extracted from the point cloud data. This operation may be performed by the modeling data generation unit 3.

Next, the cell guide is modeled using the cell guide cross-section information. This operation may be performed by the modeling data generation unit 3.

Next, the guide fitting point cloud data is extracted. This operation may be performed by the modeling data generation unit 3.

Next, a guide fitting surface is modeled using the guide fitting point cloud data. This operation may be performed by the modeling data generation unit 3.

Next, the cone point cloud data is extracted. This operation may be performed by the modeling data generation unit 3.

Next, the cone surface is modeled using the cone point cloud data. This operation may be performed by the modeling data generation unit 3.

Accordingly, the modeling data generation unit 3 may generate modeling data for the cargo hold.

Referring to FIG. 1, the virtual loading inspection unit 4 loads virtual containers in cells located inside the cell guides from modeling data for the cargo hold. For example, the virtual loading inspection unit 4 may perform a virtual loading inspection of the cargo hold by lowering the virtual container to the virtually formed cell. The virtual loading inspection unit 4 may perform the virtual loading inspection after determining a cell guide to perform the virtual loading inspection.

The virtual loading inspection unit 4 may perform the virtual loading inspection through the following process.

First, the criteria for virtual loading inspection are established. This operation may be performed by the virtual loading inspection unit 4. The virtual loading inspection unit 4 may set a standard for virtual loading inspection using information input by an operator.

Next, a ROW of a cell to perform the virtual loading test is selected. This operation may be performed by the virtual loading inspection unit 4. The virtual loading inspection unit 4 may select a row of a cell to perform a virtual loading inspection using information input by an operator.

Next, the size of the virtual container is selected. For example, the size of the virtual container may be 20 feet (FT) or 40 feet (FT). This operation may be performed by the virtual loading inspection unit 4. The virtual loading inspection unit 4 may select the size of the virtual container using information input by an operator.

Next, calculate the center point of the upper position of the 4 cell guides of the row. This operation may be performed by the virtual loading inspection unit 4. The virtual loading inspection unit 4 may calculate the center point of the upper position of the four cell guides of the corresponding ROW using information input by the operator.

Next, the virtual container is positioned at the center point of the cell guide. This operation may be performed by the virtual loading inspection unit 4.

Next, a method to perform the virtual loading inspection is selected. For example, the virtual loading inspection unit 4 may select a distance between the virtual container and the cell guide, a length for lowering the virtual container, that is, the height of the virtual container. The virtual loading inspection unit 4 may select a method to perform a virtual loading inspection using information input by an operator.

Next, the virtual loading test is started. This operation may be performed by the virtual loading inspection unit 4. In this case, the virtual loading inspection unit 4 moves the virtual container to the center point of the cell guide for each height.

Next, the distance between the cell guide and the virtual container is measured. For example, 16 points between the cell guide and the virtual container are measured in the X-axis direction and the Y-axis direction. This operation may be performed by the virtual loading inspection unit 4.

Next, the longitudinal and lateral spacings are calculated using the spacing between each cell guide and the virtual container. This operation may be performed by the virtual loading inspection unit 4.

Next, prepare a report of pass or fail results according to the longitudinal and transverse intervals. This operation may be performed by the virtual loading inspection unit 4. The virtual loading inspection unit 4 may prepare a report of pass and fail results according to longitudinal and transverse intervals using information input by the operator according to the criteria previously negotiated with the shipowner.

Accordingly, the virtual loading inspection unit 4 can perform inspection of loading virtual containers in the cells.

Referring to FIG. 1, the result data generator 5 generates result data according to loading the virtual container. The result data generation unit 5 includes an error interval information extraction module 51 and an error location acquisition module 52, and results through the error interval information extraction module 51 and the error location acquisition module 52 Data can be created.

The result data generation unit 5 determines'pass' through a display device (not shown) when the distance information between the virtual container and the cell guide belongs to preset reference distance information according to the height of the virtual container. Can be displayed.

The error interval information extraction module 51 may extract error interval information that deviates from predetermined reference interval information from among interval information between the virtual container and the cell guide according to the height of the virtual container. For example, the error interval information extraction module 51 may extract error interval information by displaying'fail' through a display device (not shown) when the interval between the virtual container and the cell guide exceeds a preset reference interval. I can.

The error location acquisition module 52 may acquire a location of a cell guide that deviates from the preset reference spacing information according to the error spacing information extracted by the error spacing information extraction module 51. For example, the error location acquisition module 52 may acquire the location of the modified cell guide by acquiring the location coordinates of the cell guide marked “failed”.

The result data generation unit 5 may generate the result data through the following process.

First, a location of data that has failed as a result of the virtual loading test is acquired. This operation may be performed by the result data generation unit 5.

Next, the cause of the failure is analyzed. For example, the cause of the failure may be a case in which an interval between the virtual container and the cell guide deviates from a preset reference interval, or when the virtual container and the cell guide come into contact. This operation may be performed by the result data generation unit 5.

Next, when the distance between the virtual container and the cell guide deviates from a preset reference distance, it is determined whether the deviated distance is within 3 mm of the preset reference distance. This operation may be performed by the result data generation unit 5.

Next, if the deviated distance is within 3 mm, the ROW virtual loading test result is re-analyzed. This operation may be performed by an operator through the result data generation unit 5.

Next, when the deviation distance exceeds 3 mm, a loading interference test is performed using a real container. This operation may be performed by the result data generation unit 5. The result data generation unit 5 may re-analyze the corresponding ROW virtual loading test result by using the information input by the operator.

Next, if the distance between the virtual container and the cell guide is out of a preset reference distance, it is determined that interference occurs between the virtual container and the cell guide, and the display device (not shown) says'fail'. Can be displayed. This operation may be performed by the error interval information extraction module 51. In this case, the error location acquisition module 52 may display the location coordinates of the cell guide marked'failed' on the display device (not shown).

Accordingly, the operator can know the location of the cell guide marked as'failed' through the display device (not shown).

Hereinafter, an embodiment of a virtual container loading inspection method according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic flowchart of a virtual container loading inspection method according to the present invention, FIG. 3 is a schematic flowchart illustrating a scan data acquisition step in a virtual container loading inspection method according to the present invention, and FIG. 4 is a virtual container loading inspection method according to the present invention. It is a schematic flowchart for explaining the measurement data matching step in the container loading inspection method.

1 to 4, the virtual container loading inspection method according to the present invention performs an inspection of loading the virtual container into the cargo hold using modeling data for the cargo hold, thereby determining the location of the modified cell guide. Can be obtained. The virtual container loading inspection method according to the present invention can be performed by the virtual container loading inspection system 1 according to the present invention described above. The virtual container loading inspection method according to the present invention includes the following configuration.

First, scan data for the cargo hold is acquired (S10). This process (S10) may be performed by the scan data acquisition unit 2 measuring a cargo hold in which a plurality of cell guides are installed using a 3D scanner to obtain measurement data, and match the obtained measurement data. This process (S10) may include a process (S11) of acquiring measurement data for cells for each area, a process of matching measurement data on the cells (S12), and a process of generating scan data for a cargo hold (S13). have.

In the process (S11) of dividing the cargo hold into a plurality of areas and obtaining measurement data for the cells by area (S11), a calibration target is installed in the middle of both sides of the cargo hold upper surface, and a 3D scanner installed at the center of the calibration target is It can be achieved by scanning both sides of the cargo hold.

The process of matching the measurement data for the cells (S12) includes a process of extracting erroneous measurement data deviating from the preset reference measurement data from among measurement data for the cells (S121), for cells excluding the erroneous measurement data. A process (S122) of acquiring measurement data may be included. The reference measurement data refers to a distance to a cargo hold and a location coordinate based on a location where the 3D scanner is installed, and may be set in advance by an operator.

The process of extracting the error measurement data (S121) may be performed by the scan data acquisition unit 2 extracting error measurement data that is less than or exceeds the reference measurement data.

The process of acquiring measurement data for cells excluding the error measurement data (S122) may be performed by the scan data acquisition unit 2 excluding the error measurement data from measurement data measured by the 3D scanner. .

The process of generating scan data for the cargo hold (S13) may be performed by the scan data acquisition unit 2 generating measurement data other than the error measurement data as data for generating modeling data for the cargo hold. . Although not shown, this process 13 may include a process of extracting measurement data for the cell guide, guide fitting, and cone installed in the cargo hold by the scan data acquisition unit 2.

Next, modeling data for the cargo hold is generated (S20). This process (S20) may be performed by the modeling data generation unit 3 using the scan data for the cargo hold. For example, this process (S20) may be performed by the modeling data generation unit 3 connecting the cell guide displayed as a plurality of dots, the guide fitting, and scan data of the cone to form a line or surface.

Next, a virtual container is loaded in the cells (S30). This process (S30) may be performed to prevent the actual container from being damaged or damaged by contacting the cell guide in the process of loading the actual container in the cargo hold. This process (S30) includes a process of lowering the virtual container to the virtual cell (S31) and a process (S32) of acquiring space information between the virtual container and the cell guide according to the height of the virtual container. Include.

The step of lowering the virtual container to the cell (S31) may be performed by the virtual loading inspection unit 4 lowering the virtual container along a center point of the cell guide for each height.

The process of acquiring (S32) information about the distance between the virtual container and the cell guide according to the height of the virtual container, the virtual loading inspection unit 4 provides the virtual container according to the descending height of the virtual container. It can be achieved by measuring the distance between the container and the cell guide.

Next, result data according to the loading of the virtual container is generated (S40). This process (S40) may be performed by the result data generation unit 5 indicating whether the spacing information between the virtual container and the cell guide according to the height of the virtual container belongs to preset reference spacing information. . This step (S40) is a step (S41) of extracting error interval information that deviates from preset reference interval information from among the interval information of the virtual container and the cell guide according to the height of the virtual container (S41) and the extracted error interval. It includes a step (S42) of acquiring a position of the cell guide out of the predetermined reference interval information according to the information.

In the step of extracting the error interval information (S41), when the interval information between the virtual container and the cell guide according to the height of the virtual container is out of preset reference interval information, the error interval information extraction module 51 This can be accomplished by displaying “failed” on the display device (not shown).

In the process (S42) of acquiring the position of the cell guide out of the preset reference interval information, the error position acquiring module 52 of the cell guide indicated as'failed' and'failed' on a display device (not shown). This can be achieved by displaying the position coordinates and obtaining the position coordinates of the cell guide marked as'failed' by the operator.

Therefore, the virtual container loading inspection method according to the present invention can achieve the following effects.

First, the virtual container loading inspection method according to the present invention is implemented to perform the container loading inspection virtually, so that loading inspection can be performed without using a crane, so that other processes requiring the use of the crane can be prevented from being delayed.

Second, the virtual container loading inspection method according to the present invention is implemented to perform a container loading inspection virtually, thereby eliminating the risk of a safety accident for a worker and shortening the time required for loading inspection.

Third, the virtual container loading inspection method according to the present invention is implemented to perform the container loading inspection virtually, thereby improving the accuracy and reliability of the loading inspection result.

Fourth, the virtual container loading inspection method according to the present invention is implemented to perform the container loading inspection virtually, so that the position of the deformed cell guide can be quickly obtained, thereby shortening the maintenance work period for the ship.

Hereinafter, an embodiment of a ship maintenance method according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 5 is a schematic flow chart of the ship maintenance method according to the present invention, Figure 6 is a schematic flow chart for explaining the cell guide maintenance steps in the ship maintenance method according to the present invention.

1 to 6, in the ship maintenance method according to the present invention, by performing the virtual container loading inspection and maintaining the modified cell guide, the distance between the virtual container and the cell guide is a predetermined standard. You can make it belong to the interval information. The ship maintenance method according to the present invention can be performed by the virtual container loading inspection system 1 according to the present invention described above. The ship maintenance method according to the present invention includes the following configuration.

First, scan data for the cargo hold is obtained (S100). This process (S100) may be performed by the scan data acquisition unit 2 measuring a cargo hold in which a plurality of cell guides are installed using a 3D scanner to obtain measurement data, and match the obtained measurement data.

Next, modeling data for the cargo hold is generated (S200). This process (S200) may be performed by the modeling data generation unit 3 using the scan data for the cargo hold. For example, this process (S200) may be performed by the modeling data generation unit 3 connecting the cell guide displayed as a plurality of dots, the guide fitting, and the scan data of the cone to form a line or surface.

Next, a virtual container is loaded in the cells (S300). This process (S300) may be performed to prevent the actual container from being damaged or damaged by contacting the cell guide in the process of loading the actual container in the cargo hold. This process (S300) may be performed by the virtual loading inspection unit 4 lowering the virtual container along the center point of the cell guide for each height. In this case, the virtual loading inspection unit 4 may obtain space information between the virtual container and the cell guide according to the height of the virtual container.

Next, result data according to the loading of the virtual container is generated (S400). This process (S400) may be performed by the result data generation unit 5 determining whether the spacing information between the virtual container and the cell guide according to the height of the virtual container belongs to preset reference spacing information. . This process (S400) is a process of extracting error spacing information in which spacing information between the virtual container and the cell guide exceeds preset reference spacing information (S401), and obtaining a location of the cell guide according to the error spacing information. (S402), and a step (S403) of maintaining the cell guide out of the preset reference interval information.

In the step of extracting the error interval information (S401), the error interval information extracting module 51 determines that the interval information between the virtual container and the cell guide according to the height of the virtual container deviates from the preset reference interval information. This can be achieved by extracting the error interval information.

The process of acquiring the position of the cell guide according to the error interval information (S402), the error position acquisition module 52 obtains the position coordinates of the cell guide deviating from the predetermined reference interval information from the extracted error interval information. Can be done.

The process of maintaining the cell guide (S403) includes a process of calculating a minimum movement value of the deformed cell guide (S4031), a process of determining whether or not the modified cell guide interferes with other cell guides when moving (S4032). And, if it is determined that the other cell guides do not interfere, moving the deformed cell guide to a minimum movement value (S4033).

First, in the step of calculating the minimum movement value of the modified cell guide (S4031), the result data generating unit (S4031) determines a minimum movement value that does not interfere with the virtual container when the virtual container is loaded into a cell. 5) can be achieved by calculating. For example, the result data generation unit 5 may calculate a movement value of the cell guide such that the distance between the virtual container and the cell guide is 23-43 mm in the vertical direction and 14-32 mm in the horizontal direction. .

Next, the step of determining whether the cell guide is interfering with other cell guides during movement (S4032) is, when the result data generator 5 moves the modified cell guide to the minimum movement value, the modified cell This can be accomplished by determining whether or not other cell guides located at the same height as the guide interfere. Interference with other cell guides when the deformed cell guide is moved to the minimum movement value means that the minimum movement value in a container loaded in a cell adjacent to the cell including the cell guide moved to the minimum movement value It means that the moved cell guide is interfered.

If it is determined that other cell guides are interfered with when the cell guide is moved, the result data generator 5 may perform a process (S4031) of calculating the minimum movement value of the modified cell guide again.

Next, when it is determined that the modified cell guide does not interfere with other cell guides during movement, the cell guide is moved to the minimum movement value (S4033). This process (S4033) may be performed by the result data generation unit 5. For example, the result data generation unit 5 may provide a new data value obtained by moving the deformed cell guide to a minimum movement value to the modeling data generation unit 3. In this case, the modeling data generation unit 3 may generate new modeling data for the cargo hold. The new modeling data may include a new position coordinate of the cell guide in which the modified cell guide is maintained.

Although not shown, the step of generating result data according to loading the virtual container (S400) includes loading the virtual container in a cell including the maintained cell guide, and the maintained cell guide And a process of determining whether the spacing information of the virtual container belongs to preset reference spacing information.

The process of loading the virtual container in the maintained cell may be performed by the virtual loading inspection unit 4 loading the virtual container in the cell including the repaired cell guide. In this case, the virtual loading inspection unit 4 may obtain spacing information between the virtual container and the repaired cell guide according to the height of the virtual container.

The process of determining whether the maintained cell guide and the spacing information of the virtual container belong to the preset reference spacing information, the result data generation unit 5 is the virtual container according to the height of the virtual container. This may be accomplished by determining whether the interval information between the container and the repaired cell guide belongs to the preset reference interval information. For example, in this process, if the interval information belongs to the preset reference interval information, the result data generating unit 5 displays'pass' on the display device (not shown), and the interval information displays preset reference interval information. Otherwise, the error interval information extraction module 51 may be performed by displaying “failed” on the display device.

The result data generation unit 5 is the minimum for maintaining the modified cell guide by the display device (not shown) when the spacing information between the virtual container and the maintained cell guide belongs to preset spacing information. A movement value, a direction in which the modified cell guide should be moved, and a'movement' may be displayed. In this case, the operator may obtain maintenance information on the modified cell guide through the display device (not shown), and perform a task of maintaining the modified cell guide to belong to a preset reference interval information. . For example, the operator may maintain the deformed cell guide so as to belong to the preset reference interval information by straightening the deformed cell guide using a hammer or the like.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

1: Virtual container loading inspection system
2: scan data acquisition unit 3: modeling data generation unit
4: virtual loading inspection unit 5: result data generation unit
51: error interval information extraction module 52: error location acquisition module

Claims (7)

Obtaining measurement data by measuring a cargo hold in which a plurality of cell guides are installed using a 3D scanner, and obtaining scan data for a cargo hold using the obtained measurement data;
Generating modeling data for a cargo hold by using the scan data for the cargo hold;
Loading virtual containers into cells located inside the cell guides using modeling data for the cargo hold; And
Including the step of generating result data according to the loading of the virtual container,
The step of obtaining the scan data,
Dividing the cargo hold into a plurality of zones and obtaining measurement data for the cells for each zone;
Extracting erroneous measurement data deviating from preset reference measurement data from measurement data for the cells; And -the error measurement data corresponds to measurement data that is less than the reference measurement data or exceeds the reference measurement data-
Including the step of obtaining measurement data for cells excluding the error measurement data,
The generating result data according to the loading of the virtual container may include extracting error spacing information that deviates from preset reference spacing information from among spacing information of the virtual container and the cell guide according to the height of the virtual container. And acquiring a position of a cell guide that deviates from the preset reference interval information according to the extracted error interval information. delete delete The method of claim 1, wherein loading a virtual container in the cells
Lowering a virtual container on the cells; And
A virtual container loading inspection method comprising the step of acquiring spacing information between the virtual container and the cell guide according to the height of the virtual container. The method of claim 1,
Generating result data according to the loading of the virtual container,
Virtual container loading inspection method comprising the step of maintaining the cell guide out of the reference interval information. The method of claim 5, wherein maintaining the cell guide out of the reference interval information
Calculating a minimum movement value of the cell guide so that the distance between the virtual container and the cell guide belongs to preset reference distance information;
Determining whether other cell guides are interfered with when the cell guide is moved according to the minimum movement value of the cell guide; And
And moving the cell guide to a minimum movement value when it is determined that the other cell guides are not interfered with. A scan data acquisition unit that acquires scan data for a cargo hold from measurement data obtained for a cargo hold in which a plurality of cell guides are installed using a 3D scanner;
A modeling data generator that generates modeling data for a cargo hold from the scan data;
A virtual loading inspection unit for loading virtual containers into cells located inside the cell guides from the modeling data for the cargo hold; And
Including a result data generating unit for generating result data according to the loading of the virtual container,
The scan data acquisition unit,
Dividing the cargo hold into a plurality of zones to obtain measurement data for the cells for each zone,
Extracts erroneous measurement data that deviates from preset reference measurement data among measurement data for the cells, and the error measurement data corresponds to measurement data that is less than the reference measurement data or exceeds the reference measurement data-
Acquiring measurement data for cells excluding the error measurement data,
The result data generation unit is an error interval information extraction module for extracting error interval information deviating from preset reference interval information from among the interval information of the virtual container and the cell guide according to the height of the virtual container, and the extracted error A virtual container loading inspection system comprising an error location acquisition module for acquiring a position of a cell guide out of the preset reference interval information according to the interval information.

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