WO2013151256A1

WO2013151256A1 - System for accuracy control of erection on marine floating dock

Info

Publication number: WO2013151256A1
Application number: PCT/KR2013/002373
Authority: WO
Inventors: 차지혜; 김관우; 김준길; 김준홍; 심승보; 이상덕; 한성종
Original assignee: 삼성중공업 주식회사
Priority date: 2012-04-05
Filing date: 2013-03-22
Publication date: 2013-10-10
Also published as: CN104245499B; KR101531488B1; BR112014024750A2; KR20150014426A; KR20130113365A; KR101903759B1; SG11201406348RA; RU2581103C1; CN104245499A; JP5827441B2; IN2014MN01975A; JP2015514042A

Abstract

According to one aspect of the present invention, a system for the accuracy control of erection on a marine floating dock is provided, wherein said system can continuously monitor a floating dock based on a rigid quay wall so as to enable a structure to be installed on the marine floating dock and control the accuracy of the installation, and can also efficiently control the accuracy of an inner block. To this end, a system for the accuracy control of erection on a marine floating dock according to one embodiment of the present invention comprises: a monitoring unit arranged on a dock and including a draft sensor for measuring the degree of warp of a dock floor and an imaging unit arranged outside the dock to measure the state of the sidewall of the dock; a measuring unit arranged on the dock to measure, on a real-time basis, the state of a hull block erected on the dock; an erection accuracy control unit arranged on the dock to control the accuracy of the dock which varies as a result of impacts from the hull block erected on the dock; and a control unit including a coordinate-converting unit for converting the information monitored or measured by the monitoring unit and the measuring unit into a single normal coordinate, and an analysis unit for analyzing the state of the dock and the state of the accuracy of the erection on the basis of the converted information, the control unit enabling the erection accuracy control unit to control the accuracy of the dock on the basis of the result of the analysis of the analysis unit. Thus, the floating dock can be continuously monitored on the basis of the rigid quay wall of the dock and the accuracy of the inner block in the dock can be controlled, thereby detecting the state of the floating dock in a more accurate manner and also performing dock ballasting in a more accurate manner.

Description

Marine Floating Dock Mounted Quality Control System

FIELD OF THE INVENTION The present invention relates to an offshore floating dock loading control system, and more particularly, to an efficient degree of continuous floating dock monitoring and internal blocks on the basis of rigid quay walls for constructing and controlling structures in offshore floating docks. An offshore floating dock mounted quality control system capable of performing management.

Dock is a facility built in a shipyard / port to build / repair a ship. It is connected to the sea by digging the ground in length / width / depth enough to allow the ship to enter the sea where the water is deep enough. Dock) Dry dock that reinforces the floor and floor with reinforced concrete or board pile and installs the dock gate at the entrance and steel box of U-shaped cross section with many tanks inside. There is a floating dock that sinks and pulls the boat into the recess of the box, then drains the tank's water with a pump and floats the boat.

1 is a view showing an embodiment of a conventionally used floating dock.

The floating dock is a steel box with a U-shaped cross section and has many tanks inside. The water subsides, the boat is pulled into the recess of the box, and the pump is drained. In other words, ships can be made in floating docks, filled with water in tanks, and ships can be delivered.

These floating docks are mainly manufactured and used to make repairs right at sea without bringing ships to shore.

A dock is a place where a large hull block assembled at a factory is mounted, and when a large dock for a large ship is floated on the sea and a large hull block is mounted on a portion of the dock, load is concentrated on the part. The dock twists. The straightness of the ship required for ship construction should be assembled with the hull blocks mounted while maintaining this straightness within the standard error range.In the case of mounting a large hull block step by step, the concentrated load generated in the floating dock as described above. Due to the deformation of the floating dock, it is believed in the art that it is not possible to build a large vessel in the manner of mounting and assembling the hull block in stages as in a dry dock.

According to an aspect of the present invention, it is possible to carry out continuous floating dock monitoring on the basis of the rigid quay wall for manufacturing and control the structure in the marine floating dock, and also to perform efficient quality control for the inner block Provides an offshore floating dock mounted quality control system.

The marine floating dock mounting quality management system according to an exemplary embodiment of the present invention includes a draft sensor provided in the dock and measuring a bending degree of the bottom of the dock and an outer portion of the dock and a photographing unit configured to measure a state of sidewalls of the dock. Monitoring unit comprising; A measurement unit provided in the dock and measuring the state of the hull block mounted in the dock in real time; A loading accuracy management unit provided in the dock and managing a degree of the dock that changes according to the influence of the hull block mounted in the dock; A control unit for analyzing the current state of the dock and the loading degree based on the information measured or measured by the monitoring unit and the measuring unit, and controlling the loading accuracy control unit to manage the degree of the dock according to an analysis result. do.

Here, the control unit is a coordinate conversion unit for converting the information measured or measured by the monitoring unit and the measurement unit into a single reference coordinate, and the current state and mounting of the dock based on the coordinate information converted by the coordinate conversion unit It includes an analysis unit for analyzing the status of the degree.

Here, the measuring unit measures the ground marking position and the support level value on the dock before the hull block is mounted in the dock, and measures the hull block for block alignment while the hull block is mounted in the dock, After the hull block is mounted in the dock, it includes measuring the mounted position.

Here, at least one measuring unit is provided in the dock, and each measuring unit provided measures the state of the hull block mounted in the dock in the form of a local coordinator based on each position provided, and the hull block measured by the measuring unit. And measuring a common point existing outside the dock so that the coordinate transformation unit can transform the coordinate information.

Here, the photographing unit photographs a portion of the side wall of the dock, photographs the dock in the form of a global coordinator based on the inner wall of the dock, the draft sensor is the dock in the form of a global coordinator based on the inner wall of the dock. Measuring the degree of warpage of the floor.

The photographing unit may include photographing a common point existing outside the dock so that the coordinate transformation unit may transform the image photographed by the photographing unit.

Here, the coordinate conversion unit includes converting the coordinates of the information of the dock monitored by the monitoring unit and the information of the hull block measured by the measurement unit into one coordinate system.

The control unit may include controlling the mounting accuracy control unit so that the information measured or measured by the monitoring unit and the measurement unit follows a preset mounting accuracy reference value.

Here, the mounting accuracy control unit includes a ballast control of the dock bottom surface under the control of the controller.

According to an aspect of the present invention, by continuously monitoring the floating dock on the basis of the rigid dock (rigid) dock and control of the internal block of the dock, it is possible to more accurately determine the state of the floating dock, and at the same time to apply the dock more accurately You can perform the sting.

1 is a conceptual diagram illustrating a floating dock conventionally implemented.

2 is a perspective view illustrating a marine floating dock mounting quality control system according to an embodiment of the present invention.

3 is a block diagram illustrating a configuration of a marine floating dock mounting quality control system according to an embodiment of the present invention.

4 is a perspective view illustrating a monitoring unit of the marine floating dock mounting quality control system according to an embodiment of the present invention.

FIG. 5 is a perspective view illustrating an optical wave of a marine floating dock mounted quality control system according to an exemplary embodiment of the present invention.

6 is a schematic diagram illustrating a mounting quality control process of the marine floating dock mounting quality management system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a configuration of a marine floating dock mounting management system according to an embodiment of the present invention will be described with reference to FIGS. 2 and 3. 2 is a perspective view illustrating a marine floating dock mounting quality control system according to an embodiment of the present invention, Figure 3 is a block diagram showing the configuration of the marine floating dock mounting quality management system according to an embodiment of the present invention. .

The marine floating dock mounting management system according to an exemplary embodiment of the present invention includes an optical wave 50 as a measuring unit, a monitoring unit 100, a control unit 200, and a mounting accuracy control unit 300.

The optical wave 50 is provided in the dock 1 and measures the state of the hull block mounted in the dock 1 in real time. The optical distance measuring device (50) measures the distance from the measurement target object using electromagnetic waves such as a laser to grasp the state of the measurement target object such as the three-dimensional position of the measurement target object. The object to be measured is a hull block mounted in the dock 1.

In addition to the optical wave 50, the measurement unit may include a three-dimensional position measuring device, a radar radar, and the like that can measure the three-dimensional position of the hull block.

The monitoring unit 100 includes a draft sensor 110 and the photographing unit 130. The monitoring unit 100 grasps the current state of the dock (1).

The draft sensor 110 is provided in the dock 1 and measures the degree of warpage of the dock bottom 3.

The photographing unit 130 includes one or more cameras. In addition, at least one photographing unit 130 is provided at the dock exterior 7 and measures the state of the side wall 5 of the dock 1.

The controller 200 includes a coordinate converter 230 and an analyzer 270. In addition, the controller 200 may use a wired or wireless communication method to receive information measured or measured by the monitoring unit 100 and the optical wave receiver 50. That is, the present invention is not limited to one method such as LAN network, WIBRO, or Bluetooth, and all methods may be applied.

The coordinate conversion unit 230 converts the information measured or measured by the monitoring unit 100 and the optical wave 50 into one reference coordinate.

The analysis unit 270 analyzes the current state of the dock 1 and the mounting degree based on the information converted by the coordinate transformation unit 230.

In addition, the controller 200 controls the loading accuracy management unit 300 to manage the degree of the dock 1 according to the analysis result of the analysis unit 270.

The placement accuracy control unit 300 is provided in the dock 1. In addition, the loading accuracy management unit 300 manages the degree of the dock (1) changes in accordance with the influence of the hull block mounted in the dock (1). In detail, the mounting accuracy control unit 300 changes the state of the dock bottom surface 3 or the dock side wall 5 according to the control signal of the control unit 200.

Next, a process of monitoring the floating dock 1 through the monitoring unit 100, which is one of the configurations of the marine floating dock loading control system according to an embodiment of the present invention, will be described with reference to FIG. 4 is a perspective view illustrating a monitoring unit of the marine floating dock mounting quality control system according to an embodiment of the present invention.

The monitoring unit 100 provides information for identifying a dock length state before, during and after the hull block is mounted in the dock 1.

In addition, the monitoring unit 100 provides the state information of the dock floor for quality control after the hull block is mounted in the dock (1).

The photographing unit 130 included in the monitoring unit 100 photographs the dock side wall 5. The photographing unit 130 photographs some surfaces of the dock side wall 5, for example, photographing four point surfaces of the edge of the side wall 5. The four point faces of the sidewall 5 edges are 35-1, 35-2, 35-3, 35-4, as shown in FIG.

In addition, one or more photographing units 130 may be provided, and as shown in FIG. 4, two may be provided. When the photographing unit 130 is provided as shown in FIG. 4, one photographing unit 130a photographs two point surfaces 35-1 and 35-2 included in one side wall. In addition, the other photographing unit 130b photographs the two point surfaces 35-3. 35-4 included in the other side wall.

In addition, the photographing unit 130 photographs the dock side wall 5 at a predetermined period. That is, by continuously photographing at a predetermined cycle, information for monitoring the change in the state of the dock 1 is provided.

In addition, the photographing unit 130 photographs the dock 1 in a global coordinator form (GCS) based on the inner wall of the dock (1).

In addition, the photographing unit 130 photographs a common point 53 existing on the outside 7 of the dock so that the coordinate converting unit 230 of the controller 200 coordinates the captured image.

The dock monitoring unit 100 monitors the dock using a camera system, but can decorate and measure the application system using three-dimensional long-range measurement equipment such as IGPS and optical wave, and at this time, corresponding to the light emitting part of the measurement equipment. The parts can be installed in a relatively stable place (such as a quay), and can be configured by applying a system by installing sensors corresponding to the light receiving unit mainly in a place to be measured.

The draft sensor 110 included in the monitoring unit 100 is installed on the bottom surface 3 of the dock. In addition, one or more draft sensors 110 may be installed on the bottom surface 3 of the dock. In addition, the draft sensor 110 may be installed at least one on the bottom surface 3 of the dock at even intervals.

In addition, the draft sensor 110 measures the degree of warp of the bottom of the dock in a global coordinator form (GCS) based on the inner wall of the dock (1).

The information collected through the monitoring unit 100 described above is converted into one reference coordinate through the coordinate conversion unit 230 included in the control unit 200 for integrated status management. Specifically, since the dock information collected by the draft sensor 110 and the photographing unit 130 is a local coordinator form (LCS), it is converted into a global coordinator form (GCS), which is a reference coordinate, based on the photographed common point. .

The information on the reference coordinates converted as described above is converted into information indicating the current state of the dock 1 through the analysis unit 270 of the controller 200.

Next, a process of determining the state of the hull block mounted on the dock 1 through the optical wave 50 of the marine floating dock mounting degree management system according to an embodiment of the present invention will be described with reference to FIG. 5.

In addition, the optical wave 50 is subjected to the following detailed process in order to determine the state of the hull block 9 mounted in the dock (1).

First, before the hull block 9 is mounted in the dock 1, the ground marking position and the support level value of the ground marking, which is the reference line marked vertically and horizontally on the dock 1, are measured. While the hull block 9 is mounted on the dock 1, the hull block 9 is measured for block alignment. Finally, after the hull block 9 is mounted in the dock 1, the mounted position is measured.

Based on the information measured through this process, the control unit 200 may grasp the present conditions and conditions in which the hull block 9 is mounted in the dock 1.

Specifically, at least one light receiver 50 may be provided in the dock 1. In FIG. 5, two dockers 50 are installed in the dock 1. As shown in FIG. 5, each of the

optical wave receivers

50a and 50b provided in the dock 1 is a state of the hull block 9 mounted in the dock 1 in the form of a local coordinator (LCS) based on each position. Is measuring.

Since the state information of the hull block 9 measured as described above is measured based on the positions of the

optical wave receivers

50a and 50b, conversion to reference coordinates is required to analyze the integrated loading state and the dock state.

To this end, the optical wave 50 includes a common point 55 existing outside the dock 7 so that the coordinate transformation unit 230 of the controller 200 coordinates the measured information of the hull block 9. Measure it.

Next, a process of managing the loading degree of the dock 1 based on the information of the dock 1 and the hull block 9 collected by the monitoring unit 100 and the optical wave 50 is based on FIG. 6. Explain. 6 is a schematic diagram illustrating a mounting quality control process of the marine floating dock mounting quality management system according to an embodiment of the present invention.

First, when the hull block 9 is mounted on the dock 1, the dock bottom surface 7 changes as shown in (1) of FIG. This state is identified through the monitoring unit 100 and the optical wave 50 above, the degree of analysis as shown in 1) of FIG.

The next process is a loading control process, in which the analysis unit 270 of the controller 200 analyzes how much change is made based on the CAD information of the dock bottom surface 3 previously stored. This process is illustrated in 2) of FIG.

After the mounting quality control process is finished, the analysis unit 270 performs a simulation before the actual mounting quality control. This process is as shown in 3) of FIG.

Finally, the control unit 200 transmits a control signal to the mounting accuracy management unit 300 based on the analyzed analysis data, and the loading accuracy management unit 300 manages the mounting accuracy according to the control signal of the control unit 200. . Specifically, the dock bottom surface 3 is driven to maintain a simulated mounting degree. That is, the mounting accuracy control unit 300 performs ballasting control on the dock bottom surface 3 according to the control signal of the control unit 200. This ballasting control allows the dock bottom 3 to be balanced by adjusting the ballast water of the ballast tanks. This process is shown in (2) of FIG.

Claims

A monitoring unit provided in the dock and including a draft sensor for measuring a degree of warp of the bottom of the dock and an imaging unit provided outside the dock and measuring a state of a side wall of the dock;

A measurement unit provided in the dock and measuring the state of the hull block mounted in the dock in real time;

A loading accuracy management unit provided in the dock and managing a degree of the dock that changes according to the influence of the hull block mounted in the dock;

A control unit for analyzing the current state of the dock and the loading degree based on the information measured or measured by the monitoring unit and the measuring unit, and controlling the loading accuracy control unit to manage the degree of the dock according to an analysis result. doing

Quality control system with offshore floating dock.
The method of claim 1,

The control unit is a coordinate conversion unit for converting the information measured or measured by the monitoring unit and the measurement unit into a single reference coordinate, the current status of the dock and the loading degree based on the coordinate information converted by the coordinate conversion unit Marine floating dock mounted quality control system including an analysis unit for analyzing the.
The method of claim 1,

The measuring unit

Before the hull block is mounted in the dock, the ground marking position and the support level value on the dock are measured.

While the hull block is mounted in the dock, the hull block is measured for block alignment,

After the hull block is mounted in the dock, the mounted position is measured.

Quality control system with offshore floating dock.
The method of claim 1,

The measuring unit

One or more within the dock,

Each measurement unit provided measures the state of the hull block mounted in the dock in the form of a local coordinator based on each position provided,

Measuring a common point existing outside the dock so that the coordinate transformation unit coordinates the information of the hull block measured by the measurement unit

Quality control system with offshore floating dock.
The method of claim 1,

The photographing unit

Photographing a portion of the sidewall of the dock,

Taking the dock in the form of a global coordinator based on the inner wall of the dock,

The draft sensor measures the degree of warp of the bottom of the dock in the form of a global coordinator based on the inner wall of the dock.

Quality control system with offshore floating dock.
The method of claim 2,

The photographing unit photographs a common point existing outside the dock so that the coordinate converting unit converts the image photographed by the photographing unit.

Quality control system with offshore floating dock.
The method of claim 2,

The coordinate transformation unit

Converting the coordinates of the information of the dock monitored by the monitoring unit and the information of the hull block measured by the measurement unit into one coordinate system

Quality control system with offshore floating dock.
The method of claim 1,

The control unit

To control the mounting accuracy management unit so that the information measured or measured by the monitoring unit and the measurement unit follows a preset mounting accuracy reference value.

Quality control system with offshore floating dock.
The method according to any one of claims 1 to 8,

The loading accuracy control unit is to control the ballast to the bottom of the dock under the control of the controller

Quality control system with offshore floating dock.