KR101451179B1 - Floating Type Breakwater, Floating Type Breakwater Structure and Control Method - Google Patents

Abstract

Disclosed are a floating breakwater, a floating breakwater structure, and a control method of a floating breakwater. The floating breakwater, which floats on the sea and offsets wave energy, according to the present invention includes: a buoyancy maintaining unit maintaining buoyancy by having a buoyant space inside; a centroid maintaining unit which is installed in the lower end of the buoyancy maintaining unit and maintains the centroid in a predetermined direction; one or more wave dissipating blocks which are installed on the upper part and reduces energy of waves flowing towards the floating breakwater; a position measuring unit measuring a current position of the wave dissipating block; a propulsion unit for propelling the centroid maintaining unit in a predetermined direction; and a control unit for storing a reference position of the wave dissipating block and controlling propulsion of the propulsion unit with respect to the difference between the stored reference position and the current position measured by the position measuring unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating breakwater, a floating breakwater structure, and a control method of the floating breakwater.

The present invention relates to a floating breakwater, a floating breakwater structure, and a control method of the floating breakwater. More particularly, the present invention relates to a float breakwater capable of stably floating the floating breakwater at a predetermined position, A breakwater type breakwater structure, and a control method of a floating breakwater.

Generally, breakwaters are outer facilities for protecting harbor facilities and ships from the waves of outer sea, and gravity type structures mostly fixed to the seabed are mainly installed.

The gravity type breakwater is supported on the upper surface of the rocky mound, which is a substructure that is firmly supported on the sea floor and is submerged in seawater and blocks the flow of seawater, and its upper part is projected over the sea surface It is made of caisson which is an upper structure to absorb the coming wave energy.

This type of gravity type breakwater provides the advantage that the structure is stable because it is a structure that is constructed integrally from the sea floor to the surface of sea water. However, due to excessive blocking of seawater, seawater circulation in port is not smooth, .

In addition, since the gravity type breakwater has to be installed on the basis of high tide in the case of a region having a large difference in the tidal range, the height of the upper structure is increased more than necessary at low tide.

In addition, the gravity type breakwater not only causes an excessive amount of dredging and an increase in materials for supporting the lower structure to be firmly supported on the sea floor, but also has a disadvantage that the construction is very difficult due to underwater construction.

In order to solve the problem of gravity type breakwaters, a float type breakwater has been developed which reflects or extinguishes the wave coming from the outer sea to the inner sea side by floating the floating body on the sea surface and fixing it on the sea floor via a chain or a cable.

Such float breakwater has a deep water depth, a large difference in tidal range, a weak ground, and can be installed at a low cost in a short period of time where the installation of breakwaters is difficult, and the water pollution of the port can be prevented.

However, floating breakwaters are floating due to sea surface, unlike gravity type breakwaters. Therefore, they are affected by inertia due to wave, which makes it difficult to moor at a certain position on the sea.

In order to solve such a problem, a floating breakwater is fixed on the sea floor using a mooring line. However, such a floating breakwater has a problem that separate underwater construction is required to fix the mooring line to the sea floor .

Japanese Patent Application Laid-Open No. 10-1997-0043618 (published on July 27, 1997)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a floating breakwater, a floating breakwater structure, and a floating structure capable of stably floating the floating breakwater at a predetermined position, And to provide a control method of the breakwater.

According to an aspect of the present invention, there is provided a floating breakwater floating on the sea and canceling wave energy, the floating breakwater comprising: a buoyancy maintaining unit for holding a buoyancy by forming a floating space therein; A center-of-gravity holding part installed at a lower end of the buoyancy holding part and holding the center of gravity in a predetermined direction; At least one sofa block installed at the top of the buoyancy holding portion and reducing the energy of the incoming wave; A position measuring unit for measuring a current position of the sofa block; A pushing portion for pushing the center of gravity holding portion in a predetermined direction; And a control unit for storing the reference position for the sofa block and controlling the thrust of the propulsion unit based on the difference between the stored reference position and the current position measured by the position measuring unit.

Here, the center-of-gravity holding unit may include: a tilt detecting unit that detects a tilted angle and an angular velocity with respect to a vertical line; A rotational force generating unit for generating a rotational force about an axis; And a rotating disk rotating about an axis by a rotational force generated by the rotational force generating unit. In this case, the control unit controls the rotational force and the rotational direction of the rotational force generating unit based on the angle and the angular velocity detected by the tilt detecting unit.

In addition, a plurality of center-of-gravity holding portions are provided in parallel, and the control portion can independently control the rotational force and the rotational direction of each rotational force generating portion.

In addition, a plurality of the propulsion units may be arranged side by side, and the control unit may independently control the propulsion of each propulsion unit.

According to another aspect of the present invention, there is provided a floating breakwater floating on the sea and canceling wave energy, the floating breakwater comprising: a center-of-gravity holding unit for holding a center of gravity in a predetermined direction; At least one sofa block stacked on top of the center-of-gravity holding portion and containing air in the enclosed space therein and reducing the energy of the incoming waves; A position measuring unit for measuring a current position of the sofa block; A pushing portion for pushing the center of gravity holding portion in a predetermined direction; And a control unit for storing the reference position for the sofa block and controlling the thrust of the propulsion unit based on the difference between the stored reference position and the current position measured by the position measuring unit.

In order to accomplish the above object, a floating breakwater structure according to an embodiment of the present invention is formed by connecting a plurality of the floating breakwaters described above to the side surfaces.

According to an aspect of the present invention, there is provided a method of controlling a floating breakwater, including: storing a reference position of a sofa block installed at an upper end of a buoyancy holding unit; Measuring a current position of the sofa block; And moving the sofa block based on the difference between the reference position stored by the reference position storing step and the current position measured by the current position measuring step.

The above-described method of controlling a breakwater includes the steps of: detecting a tilt angle and an angular velocity of a floating breakwater with respect to a vertical line; Controlling a rotational force and a rotational direction of the gyro system based on an angle and an angular velocity detected by the detecting step; And rotating the rotating disk according to a rotating force and a rotating direction controlled by the controlling step.

Here, the control step can independently control each of the plurality of gyro systems installed in parallel.

In addition, the step of moving the sofa block may independently control the respective thrust for a plurality of propellants provided in parallel to the lower end of the sofa block.

According to the present invention, it is not necessary to underwater work for fixing the mooring line to the sea floor, and the floating breakwater can be moored at the predetermined position and the wave energy can be stably reduced.

1 is a schematic view of a floating breakwater according to an embodiment of the present invention.
Fig. 2 is a view schematically showing the configuration of the center-of-gravity holding portion shown in Fig.
3 is a view for explaining the restoring force of the center-of-gravity holding part with respect to the wave energy.
4 is a view for explaining restoration of floating breakwaters by a plurality of center-of-gravity holding portions.
5 is a view for explaining the propulsion of floating breakwaters by a plurality of pushing parts.
6 is a schematic view of a floating breakwater according to another embodiment of the present invention.
7 is a schematic view of a floating breakwater according to another embodiment of the present invention.
8 is a schematic view of a floating breakwater structure according to an embodiment of the present invention.
9 is a flowchart illustrating a method of controlling a floating breakwater according to an embodiment of the present invention.

Hereinafter, a method of controlling a floating breakwater, a floating breakwater structure, and a floating breakwater according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a floating breakwater according to an embodiment of the present invention. The floating breakwater 100 according to the embodiment of the present invention floats on the sea and cancels the wave energy to minimize the wave energy transmitted to the sea.

1, a floating breakwater 100 according to an embodiment of the present invention includes a buoyancy holding unit 110, a center of gravity holding unit 120, a sofa block 130, a position measuring unit 140, (150) and a control unit (160).

The buoyancy holding portion 110 has a floating space formed therein to maintain buoyancy of the floating breakwater 100. At this time, the buoyancy holding portion 110 may be made of iron, concrete, or the like, and the end portion is closed so that air is contained in the buoyancy holding portion 110 so that the floating breakwater can float on the sea. The shape of the buoyancy holding portion 110 is not limited to the illustrated shape, and may be variously formed.

The center of gravity holding portion 120 is provided at the lower end of the buoyancy holding portion 110 to keep the center of gravity of the floating breakwater 100 vertically downward. At this time, the center-of-gravity holding unit 120 functions to erect the floating breakwater 100 straightly, even if the floating breakwater 100 is tilted by the wave energy.

Fig. 2 is a view schematically showing the configuration of the center-of-gravity holding portion shown in Fig. 2, the center-of-gravity holding portion 120 may include a tilt detecting portion 122, a torque generating portion 124, and a rotating disk 126. [

The tilt detector 122 detects an angle and an angular velocity at which the floating breakwater 100 is tilted with respect to the gravity direction. At this time, the tilt detector 122 may be a gyroscope sensor, a geomagnetic sensor, or the like.

The rotational force generating unit 124 generates a rotational force about an axis. At this time, it is preferable that the rotational force generating unit 124 is implemented so that the generated rotational force can be adjusted to various intensities. Here, the axis is installed in the center of gravity holding portion 120 in the vertical direction of the floating breakwater 100.

The rotating disk 126 is made of a disk, and its center is fixed to the rotating shaft of the rotating force generating unit 124. Accordingly, the rotating disk 126 can receive the rotational force generated by the rotational force generating unit 124 and rotate about the rotational axis.

The configuration including the rotational force generating unit 124 and the rotating disk 126 is referred to as a "gyro system".

At least one of the sofa blocks 130 is installed at the upper end of the buoyancy holding portion 110 to reduce the energy of the incoming waves. At this time, the sofa block 130 may be formed as a unit block of a top plate, a bottom plate, and a column as shown in FIG. 1, or may be formed of various other types of sofa blocks.

The position measuring unit 140 measures the current position of the sofa block 130. In this case, the position measuring unit 140 may be a GPS receiver that receives a Global Positioning System (GPS) signal from a satellite.

The pushing unit 150 pushes the center-of-gravity holding unit 120 in a predetermined direction and moves it. 1, but the present invention is not limited thereto, and any shape that can propel the center-of-gravity holding portion 120 in a predetermined direction may be used. It is acceptable.

The control unit 160 stores the reference position for the sofa block 130 and controls the driving force of the propelling unit 150 based on the difference between the stored reference position and the current position measured by the position measuring unit 140. That is, if the current position measured by the position measuring unit 140 is different from the reference position, the controller 160 controls the pushing unit 150 (i.e., the current position measured by the position measuring unit 140) To move the float breakwater 100.

The control unit 160 controls the rotational force and the rotational direction of the rotational force generating unit 124 based on the tilted angle and angular velocity of the floating breakwater 100 detected by the tilt detector 122.

3 is a view for explaining the restoring force of the center-of-gravity holding part with respect to the wave energy.

3, when the floating breakwater 100 is inclined due to a wave energy collision, the controller 160 controls the rotation force generating unit (not shown) based on the tilted angle and the angular velocity detected by the tilt detecting unit 122 124 and rotates the rotation disc 126 by controlling the rotation force and the rotation direction of the rotation disc 126. At this time, since the rotary disk 126 rotates about an axis inclined with respect to the gravity direction, the floating breakwater 100 carries out a wagging motion around the axis in the gravity direction. Here, the car wash motion refers to a phenomenon in which, when the rotational axis of an object rotating in rotation is tilted, such as when the rotational axis of the top rotates about the vertical axis, it rotates around a certain axis of rotation. In the case of the Earth, the earth rotates about 23.5 degrees from the orbit, so that the Earth's rotation axis rotates counterclockwise along the axis of the sheep, and the cycle of rotation is about 25,800 Year. Thus, the position of the Arctic will change, and after about 12,900 years, the Arctic will be located near the Artificiality.
At this time, when the rotational axis of the rotating body is inclined with respect to the gravity direction, the torque due to the gravity acts to fall on the inclined side on the upper plane of the rotating circular plate 126. On the other hand, the rotational force rotating in the direction of the car wash induces a torque to straighten the rotational axis of the object in the direction of the auxiliary axis. When accelerating the rotational force of the object in the direction of the car wash motion, the torque to raise the rotational axis of the object straight in the direction of the auxiliary axis becomes larger. From the instant when the induced torque becomes larger than the torque due to gravity, the rotational axis of the object is straight It will be erected. This principle is like the principle that when the top force of the top is falling, the top force is accelerated in the direction of the car wash motion and the top is upright.

Meanwhile, the floating breakwater 100 may include a plurality of center-of-gravity holding portions 120 as shown in FIG. The control unit 160 independently controls the rotational direction and the rotational force of the rotational force generating unit 124 corresponding to each of the center-of-gravity holding units 120 .

As shown in FIG. 4, the left and right intensities of the wave energy impinging on the floating breakwater 100 may be different from each other, so that the floating breakwater 100 can be inclined in a twisted state. In this case, the control unit 160 controls the rotational force and the rotational direction of the rotational force generating unit 124 based on the tilted angle and angular velocity detected by the tilt detecting unit 122 of each of the center-of-gravity holding units 120 The floating breakwater 100 can be normally installed immediately.

Also, the floating breakwater 100 may include a plurality of the propulsion units 150, as shown in FIG. At this time, it is preferable that the respective propulsion units 150 are installed in parallel in the same direction, and the controller 160 independently controls the propulsive force of each propulsion unit 150.

When the left and right intensities of the wave energy impinging on the floating breakwater 100 are different from each other, the floating breakwater 100 can be rotated obliquely and pushed backward. In this case, the control unit 160 may control the propulsive force of each propelling unit 150 to move the floating breakwater 100 to the reference position while rotating the same in the reference direction.

6 is a schematic view of a floating breakwater according to another embodiment of the present invention. The structure of the floating breakwater according to the embodiment of the present invention is the same as the structure of the floating breakwater shown in FIG. 1, and therefore, the same reference numerals are given thereto.

The float breakwater 100 shown in FIG. 1 is implemented such that the sofa block 130 stacked on the upper end of the buoyancy holding portion 110 is exposed above the sea surface. However, the float breakwater shown in FIG. Some of which are submerged below sea level. Such a configuration can be realized by adjusting the buoyancy held by the buoyancy holding portion 110. [ The floating breakwater 100 has a buoyancy control unit (not shown) for controlling the buoyancy held by the buoyancy holding unit 110. Depending on the situation of the position where the floating breakwater 100 is installed, The buoyancy of the holding part 110 may be adjusted.

7 is a schematic view of a floating breakwater according to another embodiment of the present invention.

7, a floating breakwater 200 according to an embodiment of the present invention includes a center-of-gravity holding unit 220, a sofa block 230, a position measuring unit 240, a propelling unit 250, and a controller 260 ). The functions and configurations of the center-of-gravity holding unit 220, the position measuring unit 240, the pushing unit 250, and the controller 260 are the same as those of the center-of-gravity holding unit 120, the position measuring unit 140 The propulsion unit 150, and the control unit 160, detailed description thereof will be omitted.

That is, in the floating breakwater 200 according to the embodiment of the present invention, the buoyancy holding portion 110 is removed in comparison with the floating breakwater 100 shown in FIG. In this case, at least one sofa block 230 is provided with a closed space in which the inside is hollow, and the material thereof is made of iron, synthetic fiber, concrete or the like, Or by stacking a plurality of blocks 230 on the center-of-gravity holding portion 120. Accordingly, the floating breakwater 200 according to the embodiment of the present invention can float on the sea by the buoyancy of the sofa block 230.

8 is a schematic view of a floating breakwater structure according to an embodiment of the present invention. The floating breakwater structure according to the embodiment of the present invention may be constructed by connecting the side surfaces of the floating breakwater 100 described above. At this time, the floating breakwater structure may be connected in the form of a curved surface as shown in FIG. 8 depending on the environment of the installed position. 8, a plurality of floating breakwaters 100 shown in FIG. 1 or 6 are connected to each other. However, it is also possible to connect a plurality of floating breakwaters 200 shown in FIG. 7 or to connect each floating breakwater 100 Or 200) can be mixed and connected to each other.

9 is a flowchart illustrating a method of controlling a floating breakwater according to an embodiment of the present invention. The method of controlling the floating breakwaters according to the embodiment of the present invention can be performed by the floating breakwaters 100 shown in FIGS.

1 to 9, the floating breakwater 100 stores the reference position of the sofa block 130 installed at the upper end of the buoyancy holding unit 110 (S110).

The floating breakwater 100 detects an inclined angle and angular velocity of the floating breakwater 100 with respect to a vertical line (S120).

The float breakwater 100 controls the rotation and direction of rotation of the gyro system based on the detected angle and angular velocity (S130) and rotates the rotating circular plate 126 to keep the floating breakwater 100 in an upright position (S140).

Meanwhile, the floating breakwater 100 measures a current position of the sofa block 130 at a predetermined period (S120). At this time, the floating breakwater 100 compares the reference position of the sofa block 130 with the current position to be measured, and controls the pusher 150 (150) to move the floating breakwater 100 in the direction of the reference position, (S160).

Accordingly, even if the floating breakwater 100 is pushed by the wave energy, the floating breakwater 100 moves in the direction of the set reference position, so that the wave energy can be stably canceled.

100: Floating breakwater 110: Buoyancy holding part
120: center of gravity holding section 122: tilt detection section
124: rotational force generating unit 126: rotating disk
130: sofa block 140: position measuring unit
150: Propelling unit 160: Control unit

Claims (10)

In float breakwaters floating in the ocean and offsetting the wave energy,
A buoyancy holding part formed inside the buoyant space to maintain buoyancy;
A center-of-gravity holding unit installed at a lower end of the buoyancy holding unit and holding the center of gravity in a predetermined direction;
At least one sofa block installed at an upper end of the buoyancy holding portion and reducing the energy of an incoming wave;
A position measuring unit for measuring a current position of the sofa block;
A propelling unit for propelling the center-of-gravity holding unit in a predetermined direction; And
A controller for storing a reference position for the sofa block and controlling the propulsion of the propulsion unit based on a difference between a stored reference position and a current position measured by the position measurement unit;
/ RTI >
The center-
A tilt detector for detecting tilted angles and angular velocities of the floating breakwaters with respect to gravity directions;
A rotating force generating unit generating a rotating force in a shaft installed in a vertical direction of the floating breakwater in the inside; And
A rotating disk rotating about the axis by a rotating force generated by the rotating force generating unit;
/ RTI >
Wherein the center-of-gravity holding portions are arranged in parallel,
Wherein the control unit independently controls the rotational force and the rotational direction of the rotational force generating unit corresponding to each of the center-of-gravity holding units based on an angle and an angular velocity measured by the tilt detecting unit of each of the center- Breakwater. delete delete The method according to claim 1,
Wherein the propulsion units are installed in parallel to each other, and the control unit independently controls the propulsive force of each of the propulsion units. In float breakwaters floating in the ocean and offsetting the wave energy,
A center of gravity holding unit for holding the center of gravity in a predetermined direction;
At least one sofa block stacked on top of the center-of-gravity holding portion and containing air in an enclosed space therein to reduce the energy of an incoming wave;
A position measuring unit for measuring a current position of the sofa block;
A propelling unit for propelling the center-of-gravity holding unit in a predetermined direction; And
A controller for storing a reference position for the sofa block and controlling the propulsion of the propulsion unit based on a difference between a stored reference position and a current position measured by the position measurement unit;
/ RTI >
The center-
A tilt detector for detecting tilted angles and angular velocities of the floating breakwaters with respect to gravity directions;
A rotating force generating unit generating a rotating force in a shaft installed in a vertical direction of the floating breakwater in the inside; And
A rotating disk rotating about the axis by a rotating force generated by the rotating force generating unit;
/ RTI >
Wherein the center-of-gravity holding portions are arranged in parallel,
Wherein the control unit independently controls the rotational force and the rotational direction of the rotational force generating unit corresponding to each of the center-of-gravity holding units based on an angle and an angular velocity measured by the tilt detecting unit of each of the center- Breakwater. The float breakwater structure according to any one of claims 1 to 5, wherein a plurality of floating breakwaters are provided, and each of the floating breakwaters is formed by connecting side by side. A floating breakwater control method performed by the float breakwater of any one of claims 1, 4, and 5,
Storing a reference position of a sofa block installed at an upper end of the buoyancy holding portion;
Detecting a tilted angle and an angular velocity of each of the center-of-gravity holding portions with respect to a gravitational direction corresponding to a plurality of gravity center hold portions provided in parallel with a lower end of the floating breakwaters;
Independently controlling a rotational force and a rotational direction of a rotational force generating unit corresponding to each of the center-of-gravity holding units based on an angle and an angular velocity detected by the detecting step; And
Rotating a rotating disk rotating about an axis corresponding to a rotating force and a rotating direction of the rotating force generating unit controlled by the controlling step;
Measuring a current position of the sofa block; And
Moving the sofa block based on a difference between a reference position stored by the reference position storing step and a current position measured by the current position measuring step;
And a control device for controlling the floating breakwaters. delete delete 8. The method of claim 7,
The step of moving the sofa block comprises:
Wherein the driving force is independently controlled for a plurality of propellants arranged side by side on the lower end of the sofa block.

Images