KR20130120109A - Ship block leveling system and controlling method thereof - Google Patents

Abstract

A leveling system for a ship block and a control method thereof are disclosed. The leveling system for the ship block and the control method thereof according to an embodiment of the present invention improves the turnover of a block manufacturing lathe, enables an unskilled person to conveniently perform the leveling work of the ship block, and improves convenience by automating the leveling work of the ship block and the monitoring work.

Description

Ship block leveling system and controlling method

The present invention relates to a ship block leveling system and a method of controlling the ship block leveling system and its control method which can increase the productivity by increasing the turnover rate of the block production table, and improve the convenience by automating the leveling operation and monitoring of the ship block. It is about.

In general, the hull, which is the basic structure of a ship, is divided into hundreds of blocks, and each block is manufactured by welding, and the blocks are mounted in a dock of a shipyard to complete the hull. Is dried by.

These ship blocks are mainly manufactured in specialized block manufacturing bodies, not large shipyards, and then assembled at the shipyards and assembled in the dock. The block manufacturing body becomes a reference index in which the rotation rate of the block production table determines the block yield.

The production of ship block is mainly composed of the order of plate / automatic → exclusion → mounting → semi-automatic welding → modified welding → finishing, and all the processes are performed on the surface plate. Proceeding, after all processes of manufacturing one ship block is finished, the production is made in a way to go to another ship block production.

In the ship block manufacturing process, finishing modified welding and finishing work do not have to work on the surface plate, but at present, since it is performed on the surface plate, it is a factor to lower the surface rotation rate, which is performed outdoors, not indoors where the formal surface plate is installed. The research to do is being actively conducted.

On the other hand, in the manufacture of hulls, since many ship blocks are manufactured separately and then mounted and completed, each ship block must be manufactured according to an accurate value in a state where the ships are leveled. ), And then perform the production. After the ship block is completed, it is leveled again and checked to see if it has been manufactured as required.

Specifically, when the leveling work is performed on the indoor surface plate, a leveling operation is performed by using a gantry type crane and a pinjig constituting the surface plate to perform a leveling operation to match a desired level, and then a post work such as mounting and welding. After this, the leveling operation is performed again for the accuracy of the welding deformation correction and the accuracy measurement through the measurement of the linear distance and angle between the members.

Indoor leveling work is performed in a pair of two to three people, at this time, the height is adjusted by using a crane, pin jig, leveler, ruler, lever block.

Even if the finishing correction welding and finishing work is performed outdoors to increase the platen turn rate, the above leveling work is necessary, but the crane and pin jig are not installed at the outside, so the leveling work cannot be performed. It is an obstacle to the introduction of outdoor processes to increase the

There is currently no commercial product that can support the outdoor block leveling work, and therefore, there is a need for a leveling system to allow the same leveling work using the indoor surface plate to be performed outdoors.

Embodiments of the present invention are intended to contribute to increased productivity and sales by increasing the rotation rate of the block production surface.

In addition, even in the case of unskilled people to easily perform the leveling work of the ship block.

In addition, it is intended to improve the convenience by automating the leveling operation and monitoring of the ship block.

According to an aspect of the present invention, a laser emitter capable of irradiating a laser in a 360 degree direction at a predetermined height, and a plurality of lasers for receiving a laser beam irradiated from the laser emitter to measure a level and wirelessly transmitting a level signal according to the measured result A level signal receiver for receiving a level signal from the plurality of laser receivers and displaying a level measurement result included therein; and a leveling command according to the level measurement result included in the level signal received by the level signal receiver. There may be provided a ship block leveling system including a leveling command unit for generating and transmitting wirelessly, and a plurality of lifting units for raising or lowering the level of a ship block seated thereon according to the leveling command received from the leveling command unit.

Here, the leveling command unit includes a wireless remote control for controlling the plurality of lifting units, the user checks the level measurement result displayed on the level signal receiver and the wireless unit to the lifting unit of the portion of the level of the ship block exceeds the error range Leveling can be controlled by the remote controller.

The leveling command unit may include an input unit for receiving a level measurement result received by the level signal receiver, a determination unit for determining whether the level measurement result input to the input unit exceeds an error range of the ship block level; A command signal generating unit for generating a leveling command signal for adjusting the height of the lifting unit when it is determined that the ship block level error range is exceeded, and receiving the leveling command signal from the command signal generating unit to the lifting unit; It may be made including a wireless transmission unit for wireless transmission.

In addition, it is installed so as to be adjacent to each of the plurality of lifting units, and may further comprise a plurality of displacement sensors for detecting if there is a level change over the error range additionally after the level of the vessel block is adjusted.

According to another aspect of the invention, the laser emitter irradiating the laser toward the plurality of laser receivers at a predetermined height, the laser receiver receives the laser to measure the level and the level signal according to the measured result Wirelessly transmitting, receiving the level signal and receiving a level measurement result included therein, generating a leveling command according to the input level measurement result, receiving the generated leveling command and lifting unit A control method of a ship block leveling system may be provided, comprising: performing a leveling operation by raising or lowering the level of a ship block seated on an upper portion of the ship block.

The generating of the leveling command may include determining whether the input level measurement result exceeds an error range of the ship block level, and when it is determined that the ship level exceeds the error range of the ship block level, the corresponding lifting unit. Generating a leveling command signal to adjust the height of the step; and wirelessly transmitting the generated leveling command signal to the corresponding lifting unit.

In addition, in the plurality of displacement sensors provided to be adjacent to each of the plurality of lifting units, the step of detecting the additional level change beyond the error range after adjusting the level of the ship block may be further included.

Embodiments of the present invention can increase productivity and sales by increasing the turnover rate of the block production surface.

In addition, even the non-skilled person can easily perform the leveling work of the ship block.

In addition, it is possible to improve the convenience by automating the leveling operation and monitoring of the ship block.

1 is a conceptual diagram schematically showing the overall configuration of a ship block leveling system according to an embodiment of the present invention
2 is a block diagram showing a laser irradiator and a laser receiver of the ship block leveling system according to an embodiment of the present invention
Figure 3 is a side view showing a lifting unit of the ship block leveling system according to an embodiment of the present invention
4 is a block diagram showing a level signal receiver and a wireless remote control of the ship block leveling system according to an embodiment of the present invention
5 is a block diagram showing the configuration of a ship block leveling system according to an embodiment of the present invention
6 is a partial side view showing a state in which a displacement sensor of the ship block leveling system according to an embodiment of the present invention is installed
7 is a flowchart illustrating an operation procedure of the ship block leveling system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.

1 is a conceptual diagram schematically showing the overall configuration of a ship block leveling system according to an embodiment of the present invention, Figure 2 is a laser irradiator and a laser receiver of the ship block leveling system according to an embodiment of the present invention 3 is a side view showing a lifting unit of the ship block leveling system according to an embodiment of the present invention. 4 is a block diagram illustrating a level signal receiver and a wireless remote control of the ship block leveling system according to an embodiment of the present invention.

1 to 4, the ship block leveling system according to an embodiment of the present invention includes a laser emitter 100 capable of irradiating a laser in a 360 degree direction at a predetermined height, and a laser irradiated from the laser emitter 100. A plurality of laser receivers 200 for receiving a level signal and wirelessly transmitting a level signal according to the measured result, and receiving a level signal from the plurality of laser receivers 200 and receiving a level measurement result included therein. A leveling command unit 600 for generating and transmitting a leveling command according to a level measurement result included in the level signal received by the level signal receiver 400 and wirelessly transmitting the level signal receiver 400 to be displayed, and the leveling command unit It may include a plurality of lifting unit 300 for raising or lowering the level of the ship block seated on the top in accordance with the leveling command received from the 600.

Ship block leveling system according to an embodiment of the present invention is mainly for outdoor leveling work as described above, but is not limited thereto and may be applied to indoor work.

In addition, since not all ship blocks can be leveled outdoors, the system according to the present invention is mainly applicable to ship blocks 10 that can be leveled using props outdoors. Here, in the case of flat blocks, all blocks can be outdoors, and only blocks having deck bases can be outdoors.

In addition, since there are no surface plates such as cranes and pin jig equipments in the outdoors, separate equipment must be provided for block leveling work, and the crane is responsible for transporting and stacking blocks over 150 tons. It can be performed by the pin jigs, and the role of the pedestal of the pin jig can be replaced by a cylindrical supporter made of steel and lumber.

The laser emitter 100 irradiates a laser at a height for measuring the level. At this time, a part or all of the body of the laser light emitter 100 is rotatably provided to irradiate the laser in a 360 degree direction.

The laser receiver 200 includes a plurality of laser receivers and receives a laser beam emitted from the laser emitter 100 to measure a level. In performing the leveling operation for leveling the original level, the laser receiver 200 is provided with three pieces, and only three points of measurement are sufficient. However, since the weight of the ship block 10 is large, three pieces are considered in consideration of sag or deformation. It is preferable to be provided above.

The laser receiver 200 measures the position of the laser beam irradiated from the laser emitter 100 by using a plurality of photosensors included in the laser receiver 202 included in the main body 220, and thus the current laser reception height. The liver level may be displayed on the display unit 201, and the level signal according to the measured result may be wirelessly transmitted to the outside by including a radio transmission function by itself.

In addition, various controls of the various laser receivers 200 are possible through the button operation unit 203, and the upper part of the main body 220 is a circular bubble tube 212, a vertical 10 mm tab 213 for fixing up and down, and laser reception. Lamp 214 may be further included.

On the other hand, the level measurement can be made in units of 1mm, the photosensor of the laser receiver 202 is made of a pin port diode (pin photo diode), the light receiving angle range is within ± 30 °, the detection error is ± 1mm and the laser detection time is It may be made in about 1 second.

The configuration of the laser receiver 200 is not limited thereto, and may be variously modified and implemented according to the requirements of the leveling system.

The level signal receiver 400 may receive a level signal from the plurality of laser receivers 200 and display a level measurement result included therein. The level signal receiver 400 may include a level signal receiver antenna 420 and an operation command unit 410, and may include a level measurement result display unit 430 capable of displaying the received result.

On the other hand, the ship block leveling system according to an embodiment of the present invention generates a leveling command according to the level measurement result included in the level signal received by the level signal receiver 400 to wirelessly transmit the leveling command unit 600 Include.

The leveling command unit 600 includes a wireless remote control 500 for controlling the plurality of lifting units 300, the level measurement result displayed by the user on the level measurement result display unit 430 of the level signal receiver 400 Checking and controlling the lifting unit 300 of the portion of the ship block 10 exceeds the error range through the wireless remote control 500 can perform a leveling operation.

The preferred error range of the leveling result is ± 5mm and if the range is exceeded, the user may readjust the level of the ship block through the wireless remote controller 500. The wireless remote control 500 may be composed of a transmission antenna 520 of the operation unit 510.

In this case, the plurality of lifting units 300 increases or decreases the level of the ship block 10 seated on the upper part according to the leveling command received from the wireless remote controller 500.

Looking at the configuration of the lifting unit 300 in more detail, first, the hydraulic tank 320 and the control box 330 for controlling the lifting unit 300 on one side on the base 310 may be provided. The control box 330 may have a built-in wireless communication function to receive a leveling command transmitted from the wireless remote control 500.

In addition, a cylinder housing 340 is provided at an upper center of the base 310, and an operation rod 344 operated by hydraulic pressure may be provided to be movable upward and downward. A housing rib 342 is installed along the outer circumferential surface of the cylinder housing 340.

A support plate 346 supporting the ship block 10 is provided at the end of the operating rod 344 so that the ship block 10 may be seated on the support plate 346. In addition, the bottom of the base 310 is provided with a fixed wheel 350 and the rotating wheel 352 can increase the ease of movement.

As described above, the lifting unit 300 configured as described above may be operated by the wireless remote controller 500 according to the level measurement result received by the user of the level signal receiver 400, and the vessel block 10 may be easily operated by an unskilled person. Leveling can be performed.

The configuration of the lifting unit 300 is not limited thereto, and may be variously configured according to the size and weight of the ship block 10 to be worked and the working environment.

On the other hand, the ship block leveling system according to an embodiment of the present invention is capable of automation of the leveling operation, the specific configuration and operation sequence will be described below.

5 is a block diagram showing a configuration of a ship block leveling system according to an embodiment of the present invention, Figure 6 is a partial side view showing a state in which a displacement sensor of the ship block leveling system according to an embodiment of the present invention is installed. 7 is a flowchart illustrating an operation procedure of the ship block leveling system according to an embodiment of the present invention.

1 to 7, the leveling command unit 600 includes an input unit 610 for receiving a level measurement result received by the level signal receiver 400 and a level measurement input to the input unit 610. Determination unit 620 for determining whether the result exceeds the error range of the ship block 10 level, and if it is determined that exceeds the ship block level error range to adjust the height of the lifting unit 300 And a command signal generator 630 for generating a leveling command signal, and a wireless transmitter 640 for receiving a leveling command signal from the command signal generator 630 and wirelessly transmitting the leveling command signal to the lifting unit 300. Can be.

That is, in the present embodiment, the leveling command unit 600 may be configured as a server or a microcomputer that receives a level measurement result and determines whether the result exceeds a leveling error range, and generates and transmits a leveling command accordingly. .

Here, the laser light emitter 100, the laser light receiver 200, and the lifting unit 300 may be configured in the same manner as described above. Meanwhile, the level signal receiver 400 may be made of a separate device as described above, or may be made of one component included in the leveling command unit 600.

In addition, the ship block leveling system according to an embodiment of the present invention is installed so as to be adjacent to each of the plurality of lifting units 300, the level change is more than the error range after the level of the ship block 10 is adjusted It may be made further comprising a plurality of displacement sensors to detect if there is.

The displacement sensor may be, for example, a wire sensor 700, wherein the wire sensor 700 is in a state in which a wire 720 is wound around a cable drum (not shown) included in the sensor body 710, A spring (not shown) is connected to force the wire 720 to always wind inward, thereby maintaining a constant tension on the wire.

Then, the wire 720 is drawn out through the shaft (not shown) connected to the cable drum and senses the distance traveled to convert the electrical signal into an electrical signal and output the converted signal.

The wire sensor 700 detects a level change exceeding an error range after the level of the ship block 10 is additionally adjusted and generates a warning beep to alert the level change after the leveling operation. Can be.

Looking at the operation sequence of the ship block leveling system configured as described above are as follows.

First, when the laser emitter 100 irradiates a laser toward a plurality of laser receivers 200 at a predetermined height (S100), the laser receiver 200 receives the lasers to measure a level and measures the result. Wirelessly transmits the level signal according to (S200).

In addition, the level signal receiver 400 receives the level signal and inputs a level measurement result included therein to the input unit 610 (S300), and the leveling command unit 600 controls the input level measurement result. As a result, a leveling command is generated.

Specifically, the determination unit 620 determines whether the input level measurement result exceeds the error range of the ship block level (S400) and if the measurement result of any one lifting unit 300 is the error range If it is determined to exceed the leveling command signal for adjusting the height of the lifting unit 300 is generated (S500).

Then, when the wireless leveling unit 640 wirelessly transmits the generated leveling command signal to the corresponding lifting unit 300, the vessel block 10 received on the generated leveling command and seated on the lifting unit 300. The leveling operation is performed by increasing or decreasing the level of (S700).

This operation is continued until it is determined that all the level measurement results and the error range, and if all the measurement results are satisfied, the process proceeds to the level change detection step (S800) through the wire sensor 700.

That is, after the leveling operation, if there is an additional level change over the error range is detected by the wire sensor 700, it is possible to build a monitoring system to notify the user with a warning beep.

Furthermore, it is also possible to configure the wireless sensor to transmit the level change sensed by the wire sensor 700 to the leveling command unit 600 so as to automate monitoring and subsequent leveling.

According to the above-described ship block leveling system, it is possible to increase the turnover rate of the block production table, and to easily perform the leveling work of the ship block even for the unskilled person, and to improve the convenience by automating the leveling work of the ship block and its monitoring. have.

In fact, the ship block leveling system according to the present invention can save 2 days for finishing welding and finishing work to improve the surface rotation rate can be expected to improve the surface rotation rate of about 120%.

In addition, because one skilled person can perform two to three pairs of work processes that must be included by the existing skilled workers, it is possible to employ a non-skilled person with abundant manpower pool compared to the skilled person. There is a growing advantage.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. You can do it. It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

100: laser emitter 200: laser receiver
300: lifting unit 400: level signal receiver
500: wireless remote control 600: leveling command unit
700: wire sensor

Claims (7)

A laser light emitter capable of irradiating a laser in a 360 degree direction at a predetermined height;
A plurality of laser receivers for receiving a laser beam emitted from the laser emitter to measure a level and wirelessly transmitting a level signal according to the measured result;
A level signal receiver which receives level signals from the plurality of laser receivers and displays level measurement results included therein;
A leveling command unit configured to generate and wirelessly transmit a leveling command according to a level measurement result included in the level signal received by the level signal receiver; And
And a plurality of lifting units for raising or lowering the level of the ship block seated on the upper side according to the leveling command received from the leveling command unit. The method of claim 1,
The leveling command unit includes a wireless remote control for controlling the plurality of lifting units,
A ship block leveling system, characterized in that a user checks a level measurement result displayed on a level signal receiver and controls a lifting unit of a portion where the level of the ship block exceeds an error range through the wireless remote controller to perform a leveling operation. The method of claim 1,
The leveling command unit,
An input unit for receiving a level measurement result received by the level signal receiver;
A determination unit that determines whether the level measurement result inputted to the input unit exceeds an error range of the ship block level;
A command signal generator for generating a leveling command signal for adjusting the height of the lifting unit when it is determined that the ship block level error range is exceeded;
And a radio transmitter for receiving a leveling command signal from the command signal generator and wirelessly transmitting the leveling command signal to the lifting unit. 4. The method according to any one of claims 1 to 3,
The ship block leveling system is installed to be adjacent to each of the plurality of lifting units, further comprising a plurality of displacement sensors for detecting if there is an additional level change beyond the error range after the level of the ship block is adjusted. The laser emitter irradiating the laser toward the plurality of laser receivers at a predetermined height;
Receiving the laser at the laser receiver to measure a level and wirelessly transmitting a level signal according to the measured result;
Receiving the level signal and receiving a level measurement result included therein;
Generating a leveling command according to the input level measurement result;
Receiving the generated leveling command to perform a leveling operation by raising or lowering the level of the vessel block seated on the upper portion of the lifting unit; Control method of a ship block leveling system comprising a. The method of claim 5,
Generating the leveling command,
Determining whether the input level measurement result exceeds an error range of the ship block level;
Generating a leveling command signal for adjusting the height of the lifting unit when it is determined that the ship block level error range is exceeded;
And wirelessly transmitting the generated leveling command signal to a corresponding lifting unit. The method according to claim 5 or 6,
The control method of the ship block leveling system further comprises the step of detecting if there is an additional level change beyond the error range after the level of the ship block is adjusted in the plurality of displacement sensors installed adjacent to each of the plurality of lifting units, respectively. .

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